merogamyn.
/mᵻˈrɒɡəmi/, U.S. /məˈrɑɡəmi/ Biology.
1. A form of sexual reproduction in which one gamete unites with either the nucleus or the cytoplasm of another. Cf. hologamy n., merogony n. 1. rare.
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the world > life > biology > biological processes > procreation or reproduction > types of reproduction > [noun] > sexual
syngenesis1836
bisexuality1850
gamogenesis1858
amphigony1876
amphimixis1893
oogamy1894
androgenesis1895
merogamy1901
gynogenesis1925
1901 Jrnl. Royal Microsc. Soc. 56 Reduced autophagy or merogamy, which does not require the participation of the whole of a second gamete, but only either of its cytoplasm or of its nucleus.
2. Originally: the production of gametes that are smaller and of a different structure than vegetative cells of the same organism (cf. merogamete n.) (obsolete). In later use: merogony (merogony n. 2), esp. that resulting in the production of gametes or gamonts.
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1925 E. B. Wilson Cell (ed. 3) vii. 583 Merogamy or Microgamy. In this type..the gametes are much smaller than the vegetative cells.
1939 I. F. Henderson & W. D. Henderson Dict. Sci. Terms (ed. 3) 199/1 Merogamy,—microgamy, q.v. [sc. ‘Syngamy between smallest individuals, produced by fission, as in Foraminifers.’]
1965 J. I. Poljanskij & E. M. Chejsin Dogiel's Gen. Protozool. (ed. 2) vii. 310 The number of gametes arising from the vegetative forms may vary from two (paired merogamy) to several hundred (multiple merogamy).
1994 Paleobiology 20 2/1 The coiled tubule injects the amoebula into the host cell. Thereafter, merogamy and sporogamy proceed sequentially.
This entry has been updated (OED Third Edition, September 2001; most recently modified version published online March 2022).
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n.1901