ladybird UK /ˈleɪ.di.bəːd/US /ˈleɪ.di.bɝd/ noun1 •(Commonwealth) Any of the Coccinellidae family of beetles, typically having a round shape and red or yellow spotted elytra.During this time, they eat about 825 Toxoptera per ladybird, making an average of about twenty-five per day to each ladybird. — 1914 formsladybirds