Pectostraca
Pectostraca Pec*tos"tra*ca, n. pl. [NL., fr. Gr. ? fixed + ? shell of a testacean.] (Zo["o]l.) A degenerate order of Crustacea, including the Rhizocephala and Cirripedia. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • pectostracan — pectostracan, a. and n. Zool. (pɛkˈtɒstrəkən) [f. mod. Zool. L. Pectostraca (f. Gr. πηκτ ός congealed + ὄστρακον tile, potsherd, shell) + an.] a. adj. Belonging to the division Pectostraca of Crustacea in Huxley s classification, a synonym of… …   Useful english dictionary

  • Entomostraca — En to*mos tra*ca, n. pl. [NL., fr. Gr. ? cut in pieces + ? burnt clay, the hard shell of Testacea.] (Zo[ o]l.) One of the subclasses of Crustacea, including a large number of species, many of them minute. The group embraces several orders; as the …   The Collaborative International Dictionary of English

  • Rhizocephala — Rhi zo*ceph a*la, n. pl. [NL., fr. Gr. ??? root + ??? head.] (Zo[ o]l.) A division of Pectostraca including saclike parasites of Crustacea. They adhere by rootlike extensions of the head. See Illusration in Appendix. [1913 Webster] …   The Collaborative International Dictionary of English

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