Hair vs. Hairs

Hairnoun

(countable) A pigmented filament of keratin which grows from a follicle on the skin of humans and other mammals.

Hairnoun

(uncountable) The collection or mass of such growths growing from the skin of humans and animals, and forming a covering for a part of the head or for any part or the whole body.

Hairnoun

A slender outgrowth from the chitinous cuticle of insects, spiders, crustaceans, and other invertebrates. Such hairs are totally unlike those of vertebrates in structure, composition, and mode of growth.

Hairnoun

A cellular outgrowth of the epidermis, consisting of one or of several cells, whether pointed, hooked, knobbed, or stellated.

Hairnoun

A locking spring or other safety device in the lock of a rifle, etc., capable of being released by a slight pressure on a hair-trigger.

Hairnoun

(obsolete) Haircloth; a hair shirt.

Hairnoun

(countable) Any very small distance, or degree; a hairbreadth.

Hairnoun

The collection or mass of filaments growing from the skin of an animal, and forming a covering for a part of the head or for any part or the whole of the body.

Hairnoun

One the above-mentioned filaments, consisting, in vertebrate animals, of a long, tubular part which is free and flexible, and a bulbous root imbedded in the skin.

Hairnoun

Hair (human or animal) used for various purposes; as, hair for stuffing cushions.

Hairnoun

A slender outgrowth from the chitinous cuticle of insects, spiders, crustaceans, and other invertebrates. Such hairs are totally unlike those of vertebrates in structure, composition, and mode of growth.

Hairnoun

An outgrowth of the epidermis, consisting of one or of several cells, whether pointed, hooked, knobbed, or stellated. Internal hairs occur in the flower stalk of the yellow frog lily (Nuphar).

Hairnoun

A spring device used in a hair-trigger firearm.

Hairnoun

A haircloth.

Hairnoun

Any very small distance, or degree; a hairbreadth.

Hairnoun

dense growth of hairs covering the body or parts of it (as on the human head); helps prevent heat loss;

Hairnoun

a very small distance or space;

Hairnoun

filamentous hairlike growth on a plant;

Hairnoun

any of the cylindrical filaments characteristically growing from the epidermis of a mammal;

Hairnoun

cloth woven from horsehair or camelhair; used for upholstery or stiffening in garments

Hairnoun

a filamentous projection or process on an organism

Hairnoun

any of the fine threadlike strands growing from the skin of humans, mammals, and some other animals

Hairnoun

a fine threadlike strand growing from the epidermis of a plant, or forming part of a living cell

Hairnoun

hairs collectively, especially those growing on a person's head

Hairnoun

a very small quantity or extent

Hair

Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals.

Hairsnoun

plural of hair