| osmazome | <chemistry> A substance formerly supposed to give to soup and broth their characteristic odour, and probably consisting of one or several of the class of nitrogenous substances which are called extractives. Origin: Gr. Smell, odour + broth: cf. F. Osmazome. Source: Websters Dictionary (01 Mar 1998) |
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| osmesis | Synonym: olfaction. Origin: G. Osmesis, smelling (05 Mar 2000) |
| osmiamate | <chemistry> A salt of osmiamic acid. Source: Websters Dictionary (01 Mar 1998) |
| osmiamic | <chemistry> Of, pertaining to, or designating, a nitrogenous acid of osmium, H2N2Os2O5, forming a well-known series of yellow salts. Origin: Osmium + amido. Source: Websters Dictionary (01 Mar 1998) |
| osmic | <chemistry> Pertaining to, derived from, or containing, osmium; specifically, designating those compounds in which it has a valence higher than in other lower compounds; as, osmic oxide. Osmic acid. <chemistry> A white volatile crystalline substance, OsO4, the most stable and characteristic of the compounds of osmium. It has a burning taste, and gives off a vapor, which is a powerful irritant poison, violently attacking the eyes, and emitting a strong chlorinelike odour. Formerly improperly called osmic acid. Source: Websters Dictionary (01 Mar 1998) |
| osmic acid | OsO4;a volatile caustic and strong oxidizing agent; colourless crystals, poorly soluble in water, but soluble in organic solvents; the aqueous solution is a fat and myelin stain and a general fixative for electron microscopy. Synonym: osmium tetroxide. (05 Mar 2000) |
| osmic acid fixative | A fixative used alone in buffer or as a postfixative after a glutaraldehyde fixative in electron microscopy; an excellent membrane fixative but a poor preservative of chromatin. (05 Mar 2000) |
| osmicate | To stain or fix with osmic acid. (05 Mar 2000) |
| osmication | Osmification The fixation of tissue with an osmic acid solution; also serves as a stain for both light and electron microscopy. (05 Mar 2000) |
| osmics | The science of olfaction. Origin: G. Osme, smell (05 Mar 2000) |
| osmidrosis | <medicine> The secretion of fetid sweat. Origin: NL, from Gr. Smell + to sweat. Source: Websters Dictionary (01 Mar 1998) |
| osmiophilic | Having an affinity for osmium tetroxide. (18 Nov 1997) |
| osmiophobic | Not readily stained with osmic acid. Origin: osmium + G. Phobos, fear (05 Mar 2000) |
| osmious | <chemistry> Denoting those compounds of osmium in which the element has a valence relatively lower than in the osmic compounds; as, osmious chloride. <chemistry> Alternative forms: osmous] Osmious acid, an acid derived from osmium, analogous to sulphurous acid, and forming unstable salts. It is a brown amorphous substance. Source: Websters Dictionary (01 Mar 1998) |
| osmite | <chemistry> A salt of osmious acid. Source: Websters Dictionary (01 Mar 1998) |