| didactic | Instructive; denoting medical teaching by lectures or textbooks, as distinguished from clinical demonstrations with patients or laboratory exercises. Origin: G. Didaktikos, fr. Didasko, to teach (05 Mar 2000) |
|---|---|
| didactic analysis | Psychoanalytic treatment for the purpose of training of an analytic candidate carried out under the official auspices of a psychoanalytic training institute. Synonym: didactic analysis. (05 Mar 2000) |
| didactyl | <zoology> An animal having only two digits. Origin: Gr. = twice + finger, toe: cf. F. Didactyle. Source: Websters Dictionary (01 Mar 1998) |
| didactylism | Congenital condition of having two fingers on a hand or two toes on a foot. Origin: G. Di-, two, + daktylos, finger or toe (05 Mar 2000) |
| didactylous | <zoology> Having only two digits; two-toed. Source: Websters Dictionary (01 Mar 1998) |
| didanosine | <chemical> A dideoxynucleoside compound in which the 3'-hydroxy group on the sugar moiety has been replaced by a hydrogen. This modification prevents the formation of phosphodiester linkages which are needed for the completion of nucleic acid chains. Didanosine is a potent inhibitor of HIV replication, acting as a chain-terminator of viral DNA by binding to reverse transcriptase; ddi is then metabolised to dideoxyadenosine triphosphate, its putative active metabolite. Pharmacological action: anti-HIV agents, antimetabolites, reverse transcriptase inhibitors. Chemical name: Inosine, 2',3'-dideoxy- (12 Dec 1998) |
| didapper | <zoology> See Dabchick. Origin: For divedapper. See Dive, Dap, Dip, and cf. Dabchick. Source: Websters Dictionary (01 Mar 1998) |
| didelphia | <zoology> The subclass of Mammalia which includes the marsupials. See Marsupialia. Origin: NL, fr. Gr. = matrix, uterus. Source: Websters Dictionary (01 Mar 1998) |
| didelphian | <zoology> Of or relating to the Didelphia. One of the Didelphia. Source: Websters Dictionary (01 Mar 1998) |
| didelphic | <zoology> Having the uterus double; of or pertaining to the Didelphia. Source: Websters Dictionary (01 Mar 1998) |
| didelphid | <zoology> Same as Didelphic. <zoology> A marsupial animal. Source: Websters Dictionary (01 Mar 1998) |
| Didelphis | A genus of marsupials, commonly called opossums, that serve as reservoir hosts of Trypanosoma cruzi. Didelphis marsupialis is the common North American variety; Didelphis paraguayensis is a South American form. Origin: G. Di-, two, + delphys, womb (05 Mar 2000) |
| didelphous | <zoology> Didelphic. <zoology> Formerly, any marsupial; but the term is now restricted to an American genus which includes the opossums, of which there are many species. See Opossum. Alternative forms: Didelphis] Origin: NL. See Didelphia. Source: Websters Dictionary (01 Mar 1998) |
| didelphyc | <zoology> Same as Didelphic. Source: Websters Dictionary (01 Mar 1998) |
| dideoxy procedure | An enzymatic procedure for sequencing of DNA employing dideoxy nucleotides as chain terminators. See: Sanger method. (05 Mar 2000) |