sea squirt

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Related to Sea squirts: Urochordata

sea squirt

n.
Any of various solitary or colonial sedentary tunicates of the class Ascidiacea, having a sac-shaped body with two siphons. Also called ascidian.

[From its habit of squirting water when disturbed.]

sea squirt

n
(Animals) any minute primitive marine animal of the class Ascidiacea, most of which are sedentary, having a saclike body with openings through which water enters and leaves. See also ascidian

sea′ squirt`


n.
any of several attached tunicates of the class Ascidiacea, that, on contraction, eject a stream of water.
[1840–50]

sea squirt

Any of various primitive sea animals having a transparent, sac-shaped body with two siphons. Sea squirts pump water through the siphons and filter it with gill-like structures to catch food particles. Sea squirts belong to the group known as tunicates.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sea squirt - ascidian that can contract its body and eject streams of watersea squirt - ascidian that can contract its body and eject streams of water
ascidian - minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves
References in periodicals archive ?
Beetles, sea cucumbers and sea squirts have yellow blood.
Clockwise from top left, Paula's pictures of a sea slug, curled octopus off South Shields) a dahlia anemone with pieces of coal stuck to it off the County Durham coast and light bulb sea squirts
Until now, the earliest deuterostomes scientists have discovered were between 510 and 520 million years old, when they had already begun to diversify into vertebrates, sea squirts, echinoderms such as starfish and sea urchins, and hemichordates.
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In the basement is the fascinating Tidal Zone, a window under the bluegreen water of the harbour through which you can see fish, prawns, sea squirts and other sealife in their underwater home.
On Friday, people are invited to St Mary's Island, in North Tyneside, to discover bladder wrack, edi-ble crabs, sea squirts and dog whelks at the coast.
Sea squirts are primitive marine animals, actually relatives of ours.
A 2007 expedition revealed that sea squirts had taken over the area of the seafloor once shaded by Larsen A.
A "shark fin" on this life jacket by Sea Squirts helps children stay afloat.
The idea is a noble one: to give a helping hand to the plants and creatures which inhabit the seabed, from snakelocks anemones and gooseberry sea squirts to velvet swimming crabs.