Hello, you have come here looking for the meaning of the word
ootid. In DICTIOUS you will not only get to know all the dictionary meanings for the word
ootid, but we will also tell you about its etymology, its characteristics and you will know how to say
ootid in singular and plural. Everything you need to know about the word
ootid you have here. The definition of the word
ootid will help you to be more precise and correct when speaking or writing your texts. Knowing the definition of
ootid, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
English
Noun
ootid (plural ootids)
- (biology) The haploid cell, produced by meiotic division of a secondary oocyte, that is a nearly mature ovum.
1972, P. R. Gross, L. I. Malkin, M. Hubbard, “Synthesis of RNA During Oogenesis of the Sea Urchin”, in Meredith C. Gould, editor, Invertebrate Oogenesis II, page 37:Beyond the last of the oocytes, toward the lumen, are found numerous closely packed ootids, which have small pronuclei and are less basophilic than the smaller oocytes, due to the accumulated yolk in the cytoplasm.
1990, P. Guerrier, I. Néant, P. Colas, L. Dufresne, J. Saint Pierre, F. Dubé, “Chapter 6: Protein synthesis and protein phosphorylation as regulators of MPF activity”, in Brian Dale, editor, Mechanism of Fertilization: Plants to Humans, page 85:This process, which now requires 45 min instead of the 20 min needed after hormone stimulation or MPF transfer does not correspond to the amplification of an eventual residual MPF present in the ootid.
1991, Richard E. Jones, Human Reproductive Biology, page 181:The haploid ovum is now called an ootid (Fig. 8—7). The second polar body degenerates, sometimes dividing before it dies.
2004, Carlo Bulletti, D. de Ziegler, Carlo Flamigni, The Uterus and Human Reproduction, page 107:It is difficult to predict at this stage whether the cryopreservation of ootids will be allowed in Italy.
Derived terms
See also