Definition of excurrent in English:


Syllabification: ex·cur·rent
Pronunciation: /ekˈskərənt


chiefly Zoology
  • (Of a vessel or opening) conveying fluid outward. The opposite of incurrent.
    More example sentences
    • The basic body form of sponges consists of numerous small incurrent canals called ostia (sing. ostium) and one or more large excurrent opening called oscula (sing. osculum).
    • That is, sperm are created, concentrated and sent out the excurrent openings, sometimes in masses so dense that the sponges appear to be smoking.
    • The velocity of the excurrent stream through the osculum may be several hundred times that at the level of the choanocytes.


early 17th century: from Latin excurrent- 'running out', from the verb excurrere.

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