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 ?
The ones that she studies acquire their toxins from sponges and sea squirts.
While the tide-swept reefs and rock surfaces of the Menai Strait are carpeted in animals like the sea anemones, sponges and sea squirts, animals that are usually found in much deeper water flourish in the limestone caves found on the Ormes, with their low light levels.
The chicken joins a diverse group of sequenced organisms, including people, dogs, mice, puffer fish, sea squirts, malaria-carrying mosquitoes, rice, and various microbes.
The undersea habitats that would be protected would be sandbanks (nursery grounds for fish), sand eels, which are food for seabirds and seals, and sea caves and reefs that support sponges, sea squirts, corals, shellfish and fish.
Adult sea squirts consist largely of two connected tubes.
Mudflats and sandbanks in the area are important feeding bases for birds, like oystercatchers and curlews, while local reefs and rock surfaces in the Menai Strait are carpeted in animals such as sea anemones, sponges and sea squirts.
He's worked on natural selection among cell lines in sea squirts, and he accepts the basic premise that evolution can occur at different levels.
After just four months in the water, the reef attracted a thick coat of bryozoa, sea squirts, algae, oysters, and barnacles.
examined the accumulation of vanadium, a metallic element found in tunicates, also called sea squirts.
We didn't expect to find things like hermit crabs, starfish, or sea squirts.
But some predatory snails, sediment-eating worms and sea squirts that filter nutrients from the water also appeared to get more carbon from kelp than from phytoplankton, reported Dunton and Donald M.