Meaning of hair
Definition of hair
(noun)
a covering for the body (or parts of it) consisting of a dense growth of threadlike structures (as on the human head); helps to prevent heat loss; "he combed his hair"; "each hair consists of layers of dead keratinized cells"
a very small distance or space; "they escaped by a hair's-breadth"; "they lost the election by a whisker"
any of the cylindrical filaments characteristically growing from the epidermis of a mammal; "there is a hair in my soup"