ooplasmn.

1896 Bot. Gaz. 21 20 If a fruit is to arise, the ooplasm, i.e. the protoplasm destined to initiate a new generation, must unite with the fertilizing protoplasm which is called spermatoplasm.

1926 Amer. Naturalist 60 110 Some writers..have..insisted that the ooplasm of the sea-urchin egg shows only a pseudo-alveolar structure.

1956 C. H. Waddington Princ. Embryol. i. 16 The different regions of the cytoplasm of the egg may have specific properties, so that a particular region can only develop in one way. Such regions are spoken of as ooplasms; an older name was ‘organ-forming substances’.

1974 Acta Anat. 89 616 A granular or flocculent material..in the intercellular spaces outside the oocyte, in the pinocytotic vesicles inside the oocyte, and in the ooplasm itself.

1984 L. W. Browder Developmental Biol. (ed. 2) xi. 483 Three different ooplasms are visible in these eggs: (1) the transparent ectoplasm; (2) the yolky endoplasm; and (3) the myoplasm.

1994 Science 28 Oct. 590/3 Nurse cell cytoplasm enters the oocyte and is mixed with the existing ooplasm by rapid ooplasmic movements.

1899 Bot. Gaz. 28 151 The antheridial tube liberates one sperm nucleus which fuses with the solitary female nucleus in the ooplasm.

1902 Bot. Gaz. 33 314 The contents of the oogonium becomes differentiated into ooplasm and periplasm, the nuclei taking position in the latter region.

1972 Amer. Jrnl. Bot. 59 666/1 Three types of cytoplasmic vesicles..were present in the peripheral ooplasm of developing Achlya imperfecta Coker oogonia.