hairlet|ˈhɛəlɪt| [f. hair n. + -let.] A small or diminutive hair. 1862All Year Round 13 Sept. 8 Mr. Samuelson..adopts the belief that each single hairlet on the fly's foot, serves as a sucking disc.1881Mivart Cat 287 A rod-like process, provided with long, slender hairlets.