noun, plural nau·ti·lus·es, nau·ti·li [nawt-l-ahy, not-] /ˈnɔt lˌaɪ, ˈnɒt-/ for 1, 2.
Origin of nautilus
Examples from the Web for nautili
The nautili live in rather shallow water usually creeping over the bottom feeding on small marine animals.Elementary Zoology, Second Edition|Vernon L. Kellogg
As far back as the Silurian we find the giant Orthoceratites contemporary with Nautili, very like those of the present ocean.The Story of the Earth and Man|J. W. Dawson
Their siphon is small, and in the form of the stri of growth they resemble Nautili.A Manual of Elementary Geology|Charles Lyell.
The shell is very different from those of the other nautili in being much more deeply indented with circular striae.
Nautili have a like range, and the shell of the liassic Loligo is similar to that of the “squid” of our own seas.Man's Place in Nature and Other Essays|Thomas Henry Huxley
British Dictionary definitions for nautili
noun plural -luses or -li (-ˌlaɪ)
Word Origin for nautilus
Word Origin and History for nautili
marine cephalopod, c.1600, from Latin nautilus, in Pliny a kind of marine snail (including also squid, cuttlefish, polyps, etc.), from Greek nautilos "paper nautilus," literally "sailor," from nautes "sailor," from naus "ship" (see naval). The cephalopod formerly was thought to use its webbed arms as sails.