| homoerotism | Homoeroticism Synonym: homosexuality. Origin: homo-+ G. Eros, love (05 Mar 2000) |
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| homofermentation | <biochemistry> A type of lactic acid fermentation in which sugars (such as lactose, glucose, pentose) are converted entirely, or almost entirely, into lactic acid. Compare: heterolactic fermentation. Both heterolactic and homolactic fermentation are done by lactic acid bacteria. (09 Oct 1997) |
| homogametic | Producing only one type of gamete with respect to sex chromosomes; in humans and most animals, the female is homogametic. Synonym: monogametic. Origin: homo-+ G. Gametikos, connubial (05 Mar 2000) |
| homogametic embryo | A female embryo with XX karyotype. (05 Mar 2000) |
| homogametic sex | <genetics> The gender which has two copies of the same sex chromosome. For example: In humans, the female is homogametic because she is XX (has two copies of the X chromosome). In birds, the male is homogametic because he is ZZ (has two copies of the Z chromosome). Compare: heterogametic sex. (09 Oct 1997) |
| homogamous | <botany> Having flowers of only one kind. Compare: heterogamous. (09 Oct 1997) |
| homogamy | <botany> The condition in a flowering plant species of having only one type of flower - one which produces both male and female parts in the same flower. Compare: heterogamy. (11 Jan 1998) |
| homogangliate | <zoology> Having the ganglia of the nervous system symmetrically arranged, as in certain invertebrates; opposed to heterogangliate. Origin: Homo- + gangliate. Source: Websters Dictionary (01 Mar 1998) |
| homogenate | A chaotic slurry of tissues and cells which results when cell-tissue structure has been mechanically disrupted (as opposed to by chemical means). (09 Oct 1997) |
| homogeneous | Consisting of or composed of similar elements or ingredients, of a uniform quality throughout. Origin: Gr. Genos = kind (18 Nov 1997) |
| homogeneous catalysis | <chemistry> A form of catalysis in which the catalyst is in the same physical state than the reactants, for example reactants and catalyst are all gases. (09 Jan 1998) |
| homogeneous immersion | In immersion microscopy, use of a fluid, such as oil, that has a refractive index virtually identical to that of glass, providing the highest possible numerical aperture. (05 Mar 2000) |
| homogeneous immersion objective | <microscopy> An objective to be immersed in a liquid of a certain refractive index and dispersion value as specified by the manufacturer of the objective. An oil-immersion objective, the most important type, is intended to be immersed in cedarwood oil (nD = 1.515) or in its manmade optical equivalent. A water-immersion objective is for dipping into an aqueous specimen mount. Alpha-monobromonaphthalene has such a high refractive index (nD = 1.66) that a very highly resolving objective (1.60 numerical aperture) was designed to be immersed in that liquid, for use by reflected light on metals and other opaque objects. (05 Aug 1998) |
| homogeneous radiation | Radiation consisting of a narrow band of frequencies, the same energy, or a single type of particle. (05 Mar 2000) |
| homogeneous system | In chemistry, a system whose parts cannot be mechanically separated, and is therefore uniform throughout and possesses in every part identically physical properties; e.g., a solution of sodium chloride in water. (05 Mar 2000) |