Pseudostome

Quick meaning: Pseudostome is a noun meaning (biology) The oral opening on the pseudembryo of an echinoderm.

Meaning

(biology) The oral opening on the pseudembryo of an echinoderm.

More Meanings

1. (biology) A false osculum or secondary opening which replaces the original osculum of a sponge.
2. (more generally) A false opening that resembles a stoma but without any true aperture.
3. A North American rodent, Geomys bursarius.

Example Sentences

It is flattened ventrally and is smooth around the pseudostome area.

The opening is via a pseudostome situated on the chamber or at the top of a neck which flares out to form a collar.

Members of the Arcellina (testate amoebae), especially the terrestrial species, are surrounded by resistent tests with only one small pseudostome.

The sarcodic body of the pseudembryo begins to shrink, the pseudostome and the two lower bauds of cilia disappear, and afterwards the two upper bands, and the embryo then becomes fixed to a stone, seaweed, or some other object.

Word Forms

• pseudostomes

Synonyms for pseudostome

Depending on context, synonyms include pseudoproct, pseudoscule, pseudostoma.

Related Words

Related dictionary entries include pseudoproct, protostoma, stoma, pseudostoma, stegostom, peristome.

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