trophamnion

trophamnion
n. [Gr. trophe, food; amnion, membrane around the fetus]
(ARTHROPODA: Insecta)
An envelope surrounding the embryonic mass in the polyembryonic ova of mainly parasitic Hymenoptera, formed by cytoplasm in the egg associated with the paranuclear mass, and functioning in relaying nutrients from the host.

Online Dictionary of Invertebrate Zoology. . 2005.

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Look at other dictionaries:

  • trophamnion — troph·amnion …   English syllables

  • trophamnion — träf+ noun Etymology: New Latin, from troph + amnion : a nutritive sheath that sometimes invests the embryonic portion of the insect egg especially in polyembryonic insects see paranucleus …   Useful english dictionary

  • paranucleus — “+ noun (plural paranuclei) Etymology: New Latin, from para (I) + nucleus 1. : an accessory or additional nucleus or body resembling a nucleus in a cell 2. : one of the nuclei derived from polar bodies that functi …   Useful english dictionary

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