follow Dictionary.com

8 Words That Are Older Than You Think

nautiloid

[nawt-l-oid] /ˈnɔt lˌɔɪd/
noun
1.
a mollusk of the subclass Nautiloidea, including nautiluses and many fossil species that were abundant in the Ordovician and Silurian periods.
adjective
2.
noting or pertaining to a nautiloid.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for nautiloid
  • While brachiopods, crinoids and nautiloid cephalopods declined.
British Dictionary definitions for nautiloid

nautiloid

/ˈnɔːtɪˌlɔɪd/
noun
1.
any mollusc of the Nautiloidea, a group of cephalopods that includes the pearly nautilus and many extinct forms
adjective
2.
of, relating to, or belonging to the Nautiloidea
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
nautiloid in Science
nautiloid
  (nôt'l-oid')   
Any of various cephalopod mollusks of the subclass Nautiloidea, having a straight or coiled shell divided internally into a series of chambers of increasing size connected by a central tube. The nautiloids include the modern nautiluses as well as numerous extinct species dating back as far as the Cambrian Period.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for nautiloid

Few English speakers likely know this word

Word Value for nautiloid

10
0
Scrabble Words With Friends

Nearby words for nautiloid