| 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 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) |
| 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 in vitro | Fertilization of an egg outside the body when the egg is normally fertilised in the body. (12 Dec 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) |
| American Red Cross | The national Red Cross society of the United States, established by Congress to assist in caring for the sick and wounded, serving as a communications link between members of the U.S. Armed forces and their families, conducting disaster relief and prevention programs, and furnishing other humanitarian services, the largest of which is a network of regional blood centres providing blood and blood products. (05 Mar 2000) |
| anatomy, cross-sectional | Descriptive anatomy based on three-dimensional imaging of the body, organs, and structures using a series of computer multiplane sections, displayed by transverse, coronal, and sagittal analyses. It is essential to accurate interpretation by the radiologist of such techniques as ultrasonic diagnosis, magnetic resonance imaging, and computed tomography. (12 Dec 1998) |
| back cross | <genetics> A crossing of a heterozygous organism and one of its homozygous parents. (09 Oct 1997) |
| blue cross | A prepaid health insurance plan for hospital costs and related services. It usually excludes physicians' services (which are covered under blue shield). (12 Dec 1998) |
| red cross | An international agency providing various humanitarian services. (12 Dec 1998) |
| collision cross-section | <radiobiology> Effective surface area of a particle when it collides with another, describes probability of collisions between the two particles. (09 Oct 1997) |
| cross | 1. Any figure in the shape of a cross formed by two intersecting lines. Synonym: crux. Synonym: crux of heart. 3. A method of hybridization or the hybrid so produced. Origin: F. Croix, L. Crux (05 Mar 2000) |
| cross agglutination | Agglutination by antibodies specific for minor (group) antigens common to several microorganisms, each of which possesses its own major specific antigen. Synonym: cross agglutination. (05 Mar 2000) |
| cross circulation | The circulation in a portion of the body of one individual of blood supplied from another individual. (12 Dec 1998) |