nouncountable and uncountableA2UK /ˈhɛə/ US /ˈhɛɚ/
A pigmented filament of keratin which grows from a follicle on the skin of humans and other mammals.singular, usually
The collection or mass of such growths growing from the skin of humans and animals, and forming a covering for any part or the whole body.singular, usually
Specifically, the collection of hairs on the top and sides of the human head, growing from the scalp.singular, usually
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.singular, usually
A cellular outgrowth of the epidermis, consisting of one or of several cells, whether pointed, hooked, knobbed, or stellated.singular, usually
Any slender, flexible outgrowth, filament, or fiber growing or projecting from the surface of an object or organism.singular, usually
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.singular, usually
Any very small distance, or degree; a hairbreadth.singular, usually
Complexity; difficulty; the quality of being hairy.singular, slang, usually
Lingaku