Pronunciation: (sēr'ō),[key] —n., —pl.(esp. collectively)-ro,(esp. referring to two or more kinds or species)-ros. 1. a large Atlantic and Gulf Coast mackerel game fish, Scomberomorus regalis. 2. any of various related fishes.
a combining form meaning “wax,” used in the formation of compound words: cerotype.Also,esp. before a vowel,cer-.