macrogameten.
/ˌmakrəʊˈɡamiːt/, U.S. /ˈˌmækroʊˈɡæmit/ Biology.
The larger (usually female) gamete in an organism where the male and female gametes differ in size.
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the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > gametes
gamete1878
zoogamete1879
planogamete1880
macrogamete1888
microgamete1888
isogamete1891
megagamete1891
oogamete1891
progamete1892
heterogamete1897
ovum1900
non-crossover1914
merogamete1925
hologamete1926
anisogamete-
1888 Jrnl. Royal Microsc. Soc. 753 The microgamete is only provided with a single micronucleus; it attaches itself to the macrogamete by fixing itself at first to the stalk... As soon as it is thus fixed its micronucleus divides by karyomitosis.
1897 Jrnl. Royal Microsc. Soc. 632 The larger female individuals containing the oosphere may be termed megagametes (macrogametes), the much smaller male individuals microgametes.
1899 T. C. Allbutt et al. Syst. Med. VIII. 945 The female gametocyte, consisting of a single macrogamete.
1946 A. Nelson Princ. Agric. Bot. vii. Plate 33 (caption) Inside the embryo-sac proximal to the micropyle the fertilized macrogamete is to be seen.
1977 T. I. Storer et al. Elements Zool. (ed. 4) xv. 262/2 If taken with blood into the gut of an appropriate female Anopheles, the female gametocyte [of Plasmodium] soon becomes a macrogamete.
1992 Internat. Jrnl. Parasitol. 22 651 Merogony continued after formation of the gametes and the first fully developed macrogametes (10-14 microns), microgametes (9-12 microns), and oocysts were also seen.
This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022).
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n.1888