zoarium
Americannoun
-
a collection of distinct, individual zooids that make up a compound or colonial organism.
-
the supporting structure for a polyp colony; polyzoarium.
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of zoarium
First recorded in 1880–85; zo- ( def. ) + -arium ( def. )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
The zoarium often covers a considerable area on flat surfaces and is sometimes found crowded together on the stems of plants.
From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson
The polypides have a definite arrangement in each zoarium, being divided into four groups, each of which has a fan-like form.
From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson
The zoarium forms a flat, more or less solid layer and is closely adherent to foreign objects.
From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson
Polypides upright, their base far removed from that of the zoarium when they are expanded Lophopus, p. 231. c'.
From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson
The zoarium often covers a considerable area, but growth seems to be mainly in two directions.
From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson
The zoaria are circular or nearly so except when about to undergo division, in which case they are constricted in the middle.
From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson
Some of these last are penetrated by zoaria of Fredericella indica.
From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson
Although the zoaria do not form compound colonies by secreting a common membrane or investment, they are markedly gregarious.
From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson
At the same time young zoaria, which did not yet possess a common investment, were found on a leaf growing on a twig which drooped into the water.
From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson
The number of zoaria joined together in a single compound colony is very variable; sometimes there are only about half a dozen and sometimes several hundreds.
From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
