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stenolaemata
Science; General science
A class of Bryozoa confined to fully marine water. The Stenolaemata include several thousand species distributed among four orders: Cystoporata, Trepostomata, Cryptostomata, and ...
gymnolaemata
Science; General science
A class of bryozoans. Predominantly marine, gymnolaemates possess lophophores which are circular in basal outline and zooecia which are short, wide, vaselike or boxlike.
microsporidea
Science; General science
A class of Cnidospora characterized by the production of minute spores with a single intrasporal or one or two intracapsular filaments and a single sporoplasm. The spore membrane ...
maxillopoda
Science; General science
A class of Crustacea whose application is gaining moderately widespread use, despite the fact that its validity is not universally accepted by researchers. The constituent ...
branchiopoda
Science; General science
A class of crustaceans. Formerly, four extant orders were recognized: Anostraca, Notostraca, Conchostraca, and Cladocera, the first two of which are well defined. The ...
ionic crystals
Science; General science
A class of crystals in which the lattice-site occupants are charged ions held together primarily by their electrostatic interaction. Such binding is called ionic binding. ...
psychotomimetic drugs
Science; General science
A class of drugs, also called psychedelic or hallucinogenic drugs, that induce transient states of altered perception resembling or mimicking the symptoms of psychosis and are ...
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