To act, go, or work diligently and steadily; especially, to do something by repeated actions; to go back and forth; as, a steamer plies between certain ports.

A fold; a plait; a turn or twist, as of a cord.

A layer, as in a layer of veneer in plywood.

A layer of rubber-coated fabric or wire making up the tire casing.

Two or more yarns that have been twisted together for greater strength before weaving.

References to "ply" refer to the thickness of the material used to manufacture a bellows.

A single thickness of steel forming part of a structural joint.

A single sheet of veneer forming one layer in a multi-layered piece of plywood.

Layer of composite (Lamina)

One layer or sheet of paper or paperboard that makes up a multi-layer aggregate.

The number of single yarns twisted together to form a plied yarn; also the number of plied yarns twisted together to form a cord. The individual yarn in a plied yarn or in a cord. One of several layers of fabric.

One or more yarns are twisted together to form a larger piece of yarn. Ply counts the number of individual yarn pieces comprising the whole.

Used to describe number of fabric layers or thread strands.

Another word for a layer of wood, typically used to described engineered hardwood construction layers.

The number of pieces of paper that make up a multi-layered, pasted or multi-cylinder-formed paperboard.

A single layer of paper. A term used when several sheets of paper are laminated together to form a board.

A layer of felt or other reinforcement material in a roof system.

There are six plies of thread in one strand of embroidery floss. Cross-stitch instructions indicate how many plies of floss should be used to complete a project. You should cut a 15- to 18-inch length of floss and separate the six single plies before stitching.

A measure of the number of individual yarns twisted together to produce the finished carpet yarn. For example, a two-ply yarn means that each tuft consists of two yarns twisted together. For cut-pile carpets plied yarns must be heatset to prevent untwisting under foot traffic.

Refers to each layer of material within a multi-layer laminate.

A layer of roofing (i.e., one-ply, two-ply). Back To FAQ No glossary terms starting with the letter q. Back To FAQ

One layer of a laminated sheet.

A single course of roofing felts.

The number of strands that are twisted together to make up one yarn.

Any of the several layers of linerboard or solid fiberboard.

Describes the number of strands twisted together to make a yarn.

The twisting together of two or more strands of yarn; e.g., two threads plied or twisted together constitute two-ply. Warping on Salish weavings is often two or three-ply wool.

"Plying" consists of twisting one or more single yarns together. The more plies, the stronger the yarn.

1. A sheet of paper pasted with other sheets to produce greater strength. Two-ply means two layers. 2. An individual sheet that is part of a set of business forms.

One sheet or panel of glass in a laminate.

One play in a Chess game -white or black, which is one half of one complete move pair. Computers have the capability to consider the probable result of an almost infinite number of move/countermove strategems against each move made by a player (except for book openings). These levels of move combinations are referred to as " plies" or half-move s in computer terminology.

In general, fabrics or felts consisting of one or more layers (laminates, and so forth). The layers that make up a stack. Yarn resulting from twisting operations (three-ply yarn, and so forth). A single layer of prepreg. A single pass in filament winding (two plies forming one layer).

The number of single yarns twisted together to form ply yarn; also the number of ply yarns twisted together to form cord. By twisting two or more yarns together, a stronger single yarn is created.

To twist two threads together in order to make a thicker thread.

A synonym for lamina

A single sheet of veneer, or several pieces laid with adjoining edges, which form one layer in a piece of plywood. Also, when two or more full sized sheets of veneer are combined in thickness so that the grain of each sheet is in the same direction.

one of the strands twisted together to make yarn or rope or thread; often used in combination; "three-ply cord"; "four-ply yarn"

(usually in combinations) one of several layers of cloth or paper or wood as in plywood

apply oneself diligently; "Ply one's trade"

use diligently; "ply your wits!"

To twist together two or more single yarns to form another yarn or cord. One of any number of single yarns twisted together to form a yarn.

The number of layers of roofing. Usually in reference to a low slope or flat type of roof. * caution - don't allow someone to talk you into applying more than one-ply of shingles. Roof won't breathe.

Two or more yarns twisted together to form a single yarn. Single ply is one yarn, two-ply is two yarns, and so on and so on.

One of the layers that makes up a stack or laminate. Also, the number of single yarns twisted together to form a plied yarn.

An individual layer of reinforcement within a total laminate comprised of several such layers.

The number of single yarns twisted together to form a yarn of multiple strands (2-ply, 3-ply, etc.).

A rubber-coated layer of fabric containing cords that run parallel to each other; extends from bead to bead and goes between the inner-line and belts or tread.

1. The number of singles yarns twisted together to form a plied yarn, or the number of plied yarns twisted together to form a cord. 2. One of a number of layers of fabric.

Layers of paper pasted together to make its strength greater. Two-ply means two layers. Also, the number of individual sheets that make up a set of business forms.

a single sheet in laminated paper.

To twist single threads in either an S or a Z direction (clockwise or counter-clockwise).

Yarn made by twisting together two or more single yarns.

A single layer or thickness of roofing material. Built-up roofs are described as three , four ply, etc., according to the number of layers of felt used to build up the membrane. French (Couche)

The twisting of two or more strands of yarn together. They are usually plied in the opposite direction in which they were spun.

A single thickness (sheet) of paper. Artists' papers and mounting boards, as well as other grades, are identified as 1-ply, 2-ply, etc. As each ply is pasted together the increased thickness and stiffness is described by the number of plies.

Number of yarns spun together to form a tuft of pile. Measurement of the yarn's thickness.

The number of layers of roofing: i.e. one-ply, two-ply.

A single sheet of veneer that forms one layer of a multi-layered piece of plywood.

The number of single yarns twisted together to form a plied yarn; one of the layers that make up a stack or laminate.

A layer of rubber-coated parallel cords.

Two or more yarns spun together.

The singular end of a pied yarn. Two-ply or three-ply refers to the number of single ends that have been used to create a strand of plied yarn.

Yarns twisted together are said to be plied. Each end or thread is counted as a ply.

One of the strands twisted together to make yarn, rope or thread or twine. Used in combination to indicate a specific number of strands (example 2-ply).

The term given to one component Truss layer of a multiple-layer girder Truss.

Refers to the thickness of the material used to manufacture a bellows. May be a single thickness (one ply) or multi-ply, Laminated.

1. A single-end component in a plied yarn. 2. The number that tells how many single ends have been ply-twisted together to form a plied yarn, e.g. two-ply or three-ply.

A layer of felt in a built-up roofing membrane; a four-ply membrane has at least four plies of felt at any vertical cross section cut through the membrane.

This is a layer of rubber-coated cords which run on an angle of 40 degrees across the tyre carcass.

Short for plywood. The most commonly used material for the deck. Usually seven layer ply.

Twisting yarns together to form 2 or more single strands.

A group of staples that have been spun together. In laymans terms, a clump of fluff that has been twisted together. Two or more plies can be twisted together to create a strand. DMC embroidery floss is a six strand fiber. Each strand of DMC is formed of two plies. Strands should not be subdivided for use. See ' Strand.'

The term used to describe a layer of felt in a foam roofing ( built-up roof membrane) system. For example, a four-ply membrane system has four plies felt.

The manner in which single strands of yarn are twisted together to form a thicker, stronger yarn. The ply is also described as either S or Z, but with rare exceptions the ply is in the opposite direction from the spin.

The number of strands of yarn twisted together to form a single yarn, as in "2-ply" or "3-ply."

A single veneer lamina in a glued plywood panel. (See also layer.)

Layer of rubber-coated parallel cords forming unit of tire carcass.

The number of single yarns twisted together to make the final yarn. Two and three ply are used most frequently in carpet production.

A single sheet of veneer or several strips laid with adjoining edges that may or may not be glued, which forms one veneer lamina in a glued panel (see layer). In some constructions, a ply is used to refer to other wood components such as particleboard or MDF.

Yarn is made from fibres twisted together. Each individual strand in the twist is known as the "ply".

a layer of felt, ply sheet, or reinforcement in a roof membrane or roof system.

A single web of paper, used by itself or laminated onto one or more additional webs as it is run through the paper machine.

One of the strands in a yarn, 2-ply would indicate that two strands have been twisted together to make one yarn.

Each layer in a multi-layered structure.

Thickness of stump sock material. The higher the ply number the thicker the socket.

layers of cord fabric that give a tire its strength. They are situated between the tire tread and the innerliner, and they run from bead to bead. These cords are rubber coated.

A term to denote the number of thicknesses or layers of roofing felt, veneer in plywood, or layers in built-up materials, in any finished piece of such material.

An individual thin layer of wood in a plywood

Ply refers to the number of yarns twisted together to make a composite yarn.

A single sheet of veneer, or several pieces laid with adjoining edges, in a piece of plywood ( see layer).

Two or more yarns joined together by twisting.

An individual layer of a laminated material.

A term used to refer to the number of single threads twisted together to form a yarn, the lowest ply thus being a two-ply yarn. Higher-ply yarn is often considered to be superior, as it is stronger, resulting in a stronger fabric and more durable garment

A single thickness, fold or layer of a multi-layered substance.

a layer of felt in a built up roof membrane system. A four-ply membrane system has four plies felt. The dimension of the exposed surface (the "exposure") of any ply may be computed by dividing the felt width (minus 2 inches) by the number of plies; thus, the exposed surface of a 36 inch wide felt in a four ply membrane should be 8 1/2 inches. (See EXPOSURE.)