| in vitro fertilization | <gynaecology> Fertilization outside the body in a laboratory, the term test tube baby is inaccurate since fertilization occurs in a small circular dish, not a test tube. (27 Oct 1998) |
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| fertilization in vitro | Fertilization of an egg outside the body when the egg is normally fertilised in the body. (12 Dec 1998) |
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| in vitro | Within a glass, observable in a test tube, in an artificial environment. (28 Oct 1998) |
| self-fertilization | <botany> The fertilization of a flower by pollen from the same flower and without outer aid; autogamy. Source: Websters Dictionary (01 Mar 1998) |
| in vivo fertilization | Fertilization of a ripe egg within the distal fallopian tube of a fertile donor female (rather than in an artificial medium), for subsequent nonsurgical transfer to an infertile recipient. (05 Mar 2000) |
| fertilization | 1. <cell biology> The essential process in sexual reproduction, involving the union of two specialised haploid cells, the male and female gametes to give a diploid cell, the zygote, which then develops to form a new organism. 2. <biology> The act of fecundating or impregnating animal or vegetable germs; especially, the process by which in flowers the pollen renders the ovule fertile, or an analogous process in flowerless plants; fecundation; impregnation. 3. <botany> Close fertilization, the fertilization of pistils by pollen derived from the stamens of the same blossom. Cross fertilization, fertilization by pollen from some other blossom. See Cross. (28 Oct 1998) |
| fertilization membrane | A viscous membrane formed on the inner surface of the vitelline membrane from the cytoplasm of the egg cell after entry of the sperm, preventing the entry of additional sperm. (05 Mar 2000) |