small, fine, nearly invisible hair that covers most of the body.
fine pale hair that grows on some parts of the body.
very fine, soft, usually short, non-pigmented hair found on the face, body or even a baby's head is called "vellus hair," and is not targeted with laser hair removal procedures.
Fine baby peach-fuzz hair that is not easily visible to the naked eye. They lack a central medulla, which is present in thick terminal hairs.
Fine colorless short hair covering most of the body surface. Vellus hair replaces lanugo shortly after birth and may be transformed into terminal hairs under the influence of androgens. In people with Androgenetic Alopecia vellus hairs replace terminal hairs. Vellus hairs lack a central medulla which accounts for their fine and colorless appearance.