(zoology) The free-swimming, hat-shaped larva of certain nemertean worms. It has no resemblance to its parent, and the young worm develops in its interior.

Bearing hair; covered with hair or down; piliferous.

plural of pilid

(zoology) Any member of the family Ampullariidae (syn. Pilidae) of apple snails.

plural of pilin

Any of a class of fibrous proteins found in pilus structures in bacteria

Having pili

plural of pilifer

A bristly structure forming part of a hearing organ on the heads of hawkmoths of the subtribe Choerocampina, used in detecting the echolocation sounds of insectivorous bats.

A covering of hair-like pili.