choanodermn.
/ˈkəʊənə(ʊ)ˌdəːm/, U.S. /ˈkoʊənoʊˌdərm/ Zoology.
The layer of choanocytes lining the chamber or chambers of a sponge.
ΚΠ
1961 Q. Jrnl. Microsc. Sci. 102 545 The recoil of the ruptured choanoderm indicates that the choanocytes were under tension in the expanded oscular tube from which the piece was derived.
1998 L. Margulis & K. V. Schwartz Five Kingdoms (ed. 3) iii. 214/1 Some biologists propose a unique phylum for glass sponges because of their unique features, such as the syncytial outer net and syncytial choanoderm (flagellated collar cells) layers.
2001 Jrnl. Biotechnol. 92 169 Flagellated choanocytes organised in choanocyte chambers (choanoderm) are the ‘filtering units’, removing food particles from the water these cells pump through the pores.
This is a new entry (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1961- for one's pains
- for one's part
- for one's particular
- for one's party
- for one's right arm
- for one's sake
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- for openers
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