Matching Words
31635 ResultsBelow are the words that matched your query.
Opercula
- noun - a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted
Operetta
- noun - a short amusing opera
Ophidian
- noun - limbless scaly elongate reptile; some are venomous
- Relating to the order of Ophidia, snakes
Ophidion
- - The typical genus of ophidioid fishes. [Written also Ophidium.] See Illust. under Ophidioid.
Ophidism
- noun - poisoning by snake venom
Ophiodon
- noun - a genus of Ophiodontidae
Ophiuran
- - Of or pertaining to the Ophiurioidea. -- n. One of the Ophiurioidea.
Ophryons
- noun - the craniometric point in the midline of the forehead immediately above the orbits
Opianine
- - An alkaloid (C22H23NO7) found in small quantity in opium. It is identical with narcotine. It is present in amounts up to 11% in Papaver somniferum, and is used clinically as an antitussive.