trilobite
any marine arthropod of the extinct class Trilobita, from the Paleozoic Era, having a flattened, oval body varying in length from 1 inch (2.5 centimeters) or less to 2 feet (61 centimeters).
Origin of trilobite
1Other words from trilobite
- tri·lo·bit·ic [trahy-luh-bit-ik], /ˌtraɪ ləˈbɪt ɪk/, adjective
Words Nearby trilobite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use trilobite in a sentence
Now, a new type of camera sees the world the way this trilobite did.
This camera lens can focus up close and far away at the same time | Anna Gibbs | April 26, 2022 | Science NewsThe trilobite approach isn’t the only way to boost the range of visual acuity.
This camera lens can focus up close and far away at the same time | Anna Gibbs | April 26, 2022 | Science NewsThe appendages are not known, but the test is in some ways like that of a trilobite.
The Appendages, Anatomy, and Relationships of Trilobites | Percy Edward RaymondThe arches of the ventral membrane in the trilobite … afford a correspondingly firm basis for the attachment of the legs.
The Appendages, Anatomy, and Relationships of Trilobites | Percy Edward RaymondPassing over the fact that the oldest isopod now known is Devonian, the fossils in question seem to me quite trilobite-like.
The Appendages, Anatomy, and Relationships of Trilobites | Percy Edward Raymond
The coxopodite of the trilobite is not fused with the basipodite, this latter segment always remaining free.
The Appendages, Anatomy, and Relationships of Trilobites | Percy Edward RaymondThe median eye has not so far been seen in any young trilobite in any stage previous to that in which compound eyes are present.
The Appendages, Anatomy, and Relationships of Trilobites | Percy Edward Raymond
British Dictionary definitions for trilobite
/ (ˈtraɪləˌbaɪt) /
any extinct marine arthropod of the group Trilobita, abundant in Palaeozoic times, having a segmented exoskeleton divided into three parts
Origin of trilobite
1Derived forms of trilobite
- trilobitic (ˌtraɪləˈbɪtɪk), adjective
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
Scientific definitions for trilobite
[ trī′lə-bīt′ ]
Any of numerous extinct and mostly small arthropods of the subphylum Trilobita that lived during the Paleozoic Era and are extremely common as fossils. Trilobites had a hard outer covering divided into three lengthwise and three widthwise sections. Their heads had two prominent compound eyes similar in structure to those of modern insects.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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