| exocytotic vesicle | <cell biology> Vesicle, for example a secretory vesicle or zymogen granule, that can fuse with the plasma membrane to release its contents. (18 Nov 1997) |
|---|---|
| exodeoxyribonuclease | <enzyme> A type of hydrolase enzyme that removes nucleotides one at a time from the end of a DNA molecule. (09 Oct 1997) |
| exodeoxyribonucleases | <enzyme> A family of enzymes that catalyze the exonucleolytic cleavage of DNA. It includes members of the class EC 3.1.11 that produce 5'-phosphomonoesters as cleavage products. Registry number: EC 3.1.- (12 Dec 1998) |
| exodeviation | Synonym: exophoria. Synonym: exotropia. (05 Mar 2000) |
| exodic | <physiology> Conducting influences from the spinal cord outward; said of the motor or efferent nerves. Opposed to esodic. Origin: Gr. Belonging to departure. See Exodus. Source: Websters Dictionary (01 Mar 1998) |
| exodic nerve | <anatomy, nerve> A nerve which transmits impulses from the brain and spinal cord to a muscle or organ. (27 Sep 1997) |
| exodontia | The branch of dental practice concerned with the extraction of teeth. Origin: exo-+ G. Odous, tooth (05 Mar 2000) |
| exodontist | One who specialises in the extraction of teeth. (05 Mar 2000) |
| exoenzyme | <enzyme> An enzyme performing its functions outside a cell; e.g., the various digestive enzyme's. Synonym: exoenzyme, lyoenzyme. (05 Mar 2000) |
| exoerythrocytic cycle | That nonpathogenic portion of the vertebrate phase of the life cycle of malarial organisms that takes place in liver cells, outside of the blood cells. (05 Mar 2000) |
| exoerythrocytic stage | Developmental stage of the malaria parasite (Plasmodium) in liver parenchyma cells of the vertebrate host before erythrocytes are invaded. The initial generation produces cryptozoites, the next generation metacryptozoites; reinfection of liver cells from blood cells apparently does not occur. Delayed development of the sporozoite (hypnozoite) of Plasmodium vivax and P. Ovale appears to be responsible for malarial relapse that may occur with these disease agents. (05 Mar 2000) |
| exogamy | Sexual reproduction between organisms which are completely unrelated to each other. Marriage between members of different groups, classes, or communities. Compare: endogamy. (11 Jan 1998) |
| exogastrula | An abnormal embryo in which the primitive gut has been everted. (05 Mar 2000) |
| exogen | <botany> A plant belonging to one of the greater part of the vegetable kingdom, and which the plants are characterised by having c wood bark, and pith, the wood forming a layer between the other two, and increasing, if at all, by the animal addition of a new layer to the outside next to the bark. The leaves are commonly netted-veined, and the number of cotyledons is two, or, very rarely, several in a whorl. Cf. Endogen. Origin: Exo- + -gen: cf. F. Exogene. Source: Websters Dictionary (01 Mar 1998) |
| exogenetic | <biology> Arising or growing from without; exogenous. Source: Websters Dictionary (01 Mar 1998) |