Any of the Sabellidae, a family of sedentary marine polychaete tube worms with the head mostly concealed by feathery branchiae.

plural of feather-legged bug

Any insect in the subfamily Holoptilinae of the family Reduviidae, many of which have legs covered with feathery hairs.

plural of feather duster worm

plural of rosy feather star

plural of feathered oof-bird

(dated, idiomatic, British slang) Any large, plentiful source or supplier of money.

(computing) An informal discussion group, typically at a conference, based on a shared interest and without any fixed agenda.

past tense of knock someone over with a feather / past participle of knock someone over with a feather

(idiomatic, informal, hyperbolic) Surprised