enteropneust

[en-tuh-ruhp-noost, -nyoost]

en·ter·op·neust

[en-tuh-ruhp-noost, -nyoost]
noun
any of various invertebrate animals of the class Enteropneusta, comprising the acorn worms.

Origin:
< Neo-Latin Enteropneusta, equivalent to Greek entero- entero- + -pneusta, neuter plural of pneustós breathed, verbid of pneîn to breathe
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Enteropneust is always a great word to know.
So is lollapalooza. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a chattering or flighty, light-headed person.
Encyclopedia Britannica
Encyclopedia

enteropneust

any of the soft-bodied invertebrates of the class Enteropneusta, phylum Hemichordata. The front end of these animals is shaped like an acorn, hence their common name. The "acorn" consists of a proboscis and a collar that may be used to burrow into soft sand or mud. The animals vary in length from about 5 cm (about 2 inches) in certain Saccoglossus species to more than 180 cm (about 6 feet) in Balanoglossus gigas.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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