To show the teeth, as a dog; to snarl.

To set the teeth together and open the lips, or to open the mouth and withdraw the lips from the teeth, so as to show them, as in laughter, scorn, or pain.

The act of closing the teeth and showing them, or of withdrawing the lips and showing the teeth; a hard, forced, or sneering smile.

Grin is the last studio album by the Swiss thrash metal band Coroner, and was followed by their self-titled compilation album, Coroner. It is the result of the progression of their sound from previous albums, mixed with a more 'laidback' and experimental style which features a lot of repetition and longer song lengths, as well as use of ambience and samples in some tracks. The album split the band's fanbase - some thought it was their crowning achievement, and the pinnacle of their songwriting, while others unfortunately accused them of 'selling out'.

Germplasm Resources Information Network (GRIN). GRIN is a genebank management system for the U.S. Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Beltsville, Maryland. GRIN is a database system developed to preserve and distribute information about plant germplasm throughout the NPGS and to any plant scientist, breeder, or research organization nationally and internationally.

A snare; a gin.

a motor neuron-derived factor that directs formation of the postsynaptic apparatus of the neuromuscular junction

Graded-Index Fiber

Abbreviation for gradient index. Generally refers to the SELFOC lens often used in fiber optics.

Gila River Indian News

To express by grinning.

a facial expression characterized by turning up the corners of the mouth; usually shows pleasure or amusement

Grin – don't take me too seriously.

A term used when the backing of carpet shows through the rows in the product.

Condition where the carpet backing shows between the rows of pile yarns.

a collection of over a thousand images of significant historical interest scanned at high-resolution in several sizes

a plus point