[ 'nɔ:tɪləs ]
■ noun ( plural ~es or nautili -lʌɪ , -li: ) a cephalopod mollusc with a light external spiral shell and numerous short tentacles around the mouth. [Genus Nautilus : several species.]
Derivatives
nautiloid noun
Origin
mod. L., from L., from Gk nautilos , lit. 'sailor'.