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Wordswarms From Years Past


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Adjacent Words

Holostei
Holosteric
Holostomata
Holostomate
Holostomatous
Holostome
Holostraca
Holothure
Holothuria
Holothuria edulis
holothurian
Holothurida
Holothuridae
Holothuridea
Holothuroidea
Holotricha
holotype
holotypic
Holour
holozoic
Holp
Holpen
hols
Holsom
Holst
Holstein

Holothurioidea definitions

Webster's 1913 Dictionary

Holothurioidea Hol`o*thu`ri*oi"de*a, n. pl. [NL. See Holothure, and -oid.] (Zo["o]l.) One of the classes of echinoderms. Note: They have a more or less elongated body, often flattened beneath, and a circle of tentacles, which are usually much branched, surrounding the mouth; the skin is more or less flexible, and usually contains calcareous plates of various characteristic forms, sometimes becoming large and scalelike. Most of the species have five bands (ambulacra) of sucker-bearing feet along the sides; in others these are lacking. In one group (Pneumonophora) two branching internal gills are developed; in another (Apneumona) these are wanting. Called also Holothurida, Holothuridea, and Holothuroidea.



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