/
ˈnɔːtɪləs/
n.
(pl. nautiluses or nautili
/-lʌɪ, -liː/
)
a cephalopod mollusc with a light external spiral shell and numerous short tentacles around the mouth.
[Genus
Nautilus: several species.]
Derivative
Etymology
mod. L., from L., from Gk nautilos, lit. ‘sailor’.