| aurelia | <zoology> The chrysalis, or pupa of an insect, especially. When reflecting a brilliant golden colour, as that of some of the butterflies. A genus of jellyfishes. See Discophora. Origin: NL, fr. L. Aurum gold: cf. F. Aurelie. Cf. Chrysalis. Source: Websters Dictionary (01 Mar 1998) |
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| Paramecium | <protozoa> Genus of ciliate protozoans. The slipper animalcule is cigar shaped, covered in rows of cilia and about 250 um long. Free swimming, common in freshwater ponds, feeds on bacteria and other particles. Reproduces asexually by binary fission and sexually by conjugation involving the exchange of micronuclei. See: kappa particle. (18 Nov 1997) |
| paramecium tetraurelia | A species of ciliate protozoa. It is used in biomedical research. (12 Dec 1998) |
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