n.1.(Zool.) A tuft or brush of hair on the knees of some species of antelopes and other animals; - chiefly used in the plural.
2.(Zool.) A thick mass or collection of hairs on the legs of bees, by aid of which they carry the collected pollen to the hive or nest; - usually in the plural.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.