Share this entry

Share this page

lamp shell

Syllabification: lamp shell

Definition of lamp shell in English:

noun

A marine invertebrate that superficially resembles a bivalve mollusk but has two or more arms of ciliated tentacles (lophophores) that are extended for filter feeding. Lamp shells are common as fossils. Also called brachiopod.
Example sentences
  • Brachiopods - lampshells - for instance, have remained virtually unchanged since they first appeared in the Cambrian Period, more than 500 million years ago.
  • For example, horseshoe crabs (Limulus) and lampshells (Lingula) both occur in shallow marine environments, where many predators and competitors exist, particularly since the Cretaceous Period.
  • Until now, the earliest animals known to be coloured were lamp shells that lived about 350 million years ago.

Origin

mid 19th century: from its resemblance to an ancient oil lamp.

Definition of lamp shell in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day cumbersome
Pronunciation: ˈkʌmbəs(ə)m
adjective
large or heavy and therefore difficult to carry…