: one of the asexually produced individuals of a compound organism (such as a bryozoan, siphonophore, or coral colony)
Examples of zooid in a Sentence
Recent Examples on the WebEach siphonophore is a colony of individual zooids, clusters of cells that clone themselves thousands of times to produce an extended, stringlike body.
Devi Lockwood, New York Times, 14 Apr. 2020 The creatures, made up of individual zooids -- small, multicellular organisms -- normally reside in warmer waters, like the tropics, and usually don't travel farther north than the waters off southern California.
Ted Sickinger, OregonLive.com, 22 Apr. 2018 Inside the wall of this gelatinous tube, which can get up to 60 cm, individual zooids are tightly packed together.
The Washington Post, OregonLive.com, 29 June 2017 These zooids have an incurrent and excurrent siphon and use cilia to pump water for feeding, respiration and movement.
The Washington Post, OregonLive.com, 29 June 2017 In fact, these giants, called pyrosomes, are actually made up of thousands of much smaller creatures called zooids.
National Geographic, 29 Mar. 2017
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'zooid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Term introduced by T. H. huxley in "Observations upon the Anatomy and Physiology of Salpa and Pyrosoma," "Received February 26,—Read March 27, 1851," Philosophical Transactions of the Royal Society for the Year 1851, Part II, p. 579.