| octopodia | <zoology> Same as Octocerata. Origin: NL, fr. Gr. Eight + a little foot. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| octopus | <zoology> A genus of eight-armed cephalopods, including numerous species, some of them of large size. See Devilfish. Origin: NL. See Octopod. Source: Websters Dictionary (01 Mar 1998) |
| octoradiated | Having eight rays. Origin: Octo- + radiated. Source: Websters Dictionary (01 Mar 1998) |
| octose | A sugar containing eight carbon atoms. (05 Mar 2000) |
| octospermous | <botany> Containing eight seeds. Origin: Octo- + Cr. Seed. Source: Websters Dictionary (01 Mar 1998) |
| octostichous | <botany> In eight vertical ranks, as leaves on a stem. Origin: Octo- + Gr. A row. Source: Websters Dictionary (01 Mar 1998) |
| octoxynol | <chemical> Alpha-(octylphenyl)-omega-hydroxypoly(oxy-1,2-ethanediyl). Nonionic surfactant mixtures varying in the number of repeating ethoxy (oxy-1,2-ethanediyl) groups. They are used as detergents, emulsifiers, wetting agents, defoaming agents, etc. Octoxynol-9, the compound with 9 repeating ethoxy groups, is a spermatocide. Pharmacological action: antifoaming agents, detergents, excipient, spermatocidal agents, surface-active agent. Chemical name: Poly(oxy-1,2-ethanediyl), alpha-(4-(1,1,3,3-tetramethylbutyl)phenyl)-omega-hydroxy- (12 Dec 1998) |
| octoyl | <chemistry> A hypothetical radical (C8H15O), regarded as the essential residue of octoic acid. Origin: Octoic + -yl. Source: Websters Dictionary (01 Mar 1998) |
| octreotide | <chemical> D-phenylalanyl-l-cysteinyl-l-phenylalanyl-d-tryptophyl-l-lysyl-l-threonyl-n-(2-hydroxy-1-(hydroxymethyl)propyl)-l-cysteinamide cyclic (2-7)-disulfide. A potent, long-acting somatostatin octapeptide analog which has a wide range of physiological actions. It inhibits growth hormone secretion, is effective in the treatment of hormone-secreting tumours from various organs, and has beneficial effects in the management of many pathological states including diabetes mellitus, orthostatic hypertension, hyperinsulinism, hypergastrinaemia, and small bowel fistula. Pharmacological action: antineoplastic agent, hormonal, gastrointestinal agents, hormones, synthetic. Chemical name: L-Cysteinamide, D-phenylalanyl-L-cysteinyl-L-phenylalanyl-D-tryptophyl-L-lysyl-L-threonyl-N-(2-hydroxy-1-(hydroxymethyl)propyl)-, cyclic (2-7)-disulfide, (R-(R*,R*))- (12 Dec 1998) |
| octulose | An eight-carbon monoketose. (05 Mar 2000) |
| octulose 1,8-bisphosphate-heptulose 7-phosphotransferase | <enzyme> Catalyses phosphate transfer at c-1 between octulose 1,8-bisphosphate and sedoheptulose-7-phosphate; found in mammalian tissues with pentosephosphate pathway activity Registry number: EC 2.7.1.- Synonym: octop-sehp phosphotransferase, d-glycero d-ido octulose 1,8-bisphosphate-d-altro-heptulose 7-phosphotransferase (26 Jun 1999) |
| octulosonic acid | The -onic acid formally formed by oxidation of carbon atom 1 of octulose to a carboxylic acid group; a condensation product of d-arabinose and phosphoenolpyruvate analogous to neuraminic acid. It forms part of the repeating unit of the polysaccharides of the complex lipopolysaccharides of the Enterobacteriaceae constituting the characteristic somatic octose antigens. (05 Mar 2000) |
| octyl | <chemistry> A hypothetical hydrocarbon radical regarded as an essential residue of octane, and as entering into its derivatives; as, octyl alcohol. Origin: Octane + -yl. Source: Websters Dictionary (01 Mar 1998) |
| octyl gallate | Octyl 3,4,5-trihydroxybenzoate;an antioxidant. (05 Mar 2000) |
| octyl glucoside | <chemical> A biological detergent characterised by its ease of removal from hydrophobic proteins. Used to solubilise membrane proteins. (18 Nov 1997) |