| homogeneously staining region | <molecular biology> A region on a chromosome which, when stained, is uniform in appearance. (Normally, a stained chromosome shows a banding pattern.) Homogeneously staining regions contain multiple copies of a single gene. (09 Oct 1997) |
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| homogenesis | Reproduction by the same process in succeeding generations. Homogenesis is in contrast to alternation of generations, which occurs for example in all plants. Humans are an example of homogenetic reproduction. (09 Oct 1997) |
| homogenetic | <biology> Homogenous; applied to that class of homologies which arise from similarity of structure, and which are taken as evidences of common ancestry. Source: Websters Dictionary (01 Mar 1998) |
| homogenise | To make homogeneous. (05 Mar 2000) |
| homogenization | The process by which a material is made homogeneous. (05 Mar 2000) |
| homogenous | <biology> Having a resemblance in structure, due to descent from a common progenitor with subsequent modification; homogenetic; applied both to animals and plants. See Homoplastic. Source: Websters Dictionary (01 Mar 1998) |
| homogenous keratoplasty | Corneal transplant with donor material from another individual of the same species. (05 Mar 2000) |
| homogentisate 1,2-dioxygenase | An iron-containing enzyme that catalyses the oxidative cleavage of the benzene ring in homogentisic acid by O2, forming 4-maleylacetoacetate; an absence or deficiency of this enzyme will result in alcaptonuria. Synonym: homogentisic acid oxidase. (05 Mar 2000) |
| homogentisic acid | <chemical> Chemical name: Benzeneacetic acid, 2,5-dihydroxy- (12 Dec 1998) |
| homogentisic acid oxidase | An iron-containing enzyme that catalyses the oxidative cleavage of the benzene ring in homogentisic acid by O2, forming 4-maleylacetoacetate; an absence or deficiency of this enzyme will result in alcaptonuria. Synonym: homogentisic acid oxidase. (05 Mar 2000) |
| homogentisuria | <biochemistry> The excretion of homogentisic acid (alkapton) in the urine due to the congenital absence of the enzyme homogentisate 1,2-dioxygenase. This enzyme mediates the breakdown of the amino acids phenylalanine and tyrosine. The urine may be quite dark, particularly when allowed to stand. Origin: Gr. Ouron = urine (27 Sep 1997) |
| homogeny | 1. Joint nature. 2. <biology> The correspondence of common descent; a term used to supersede homology by Lankester, who also used homoplasy to denote any superinduced correspondence of position and structure in parts embryonically distinct (other writers using the term homoplasmy). Thus, there is homogeny between the fore limb of a mammal and the wing of a bird; but the right and left ventricles of the heart in both are only in homoplasy with each other, these having arisen independently since the divergence of both groups from a univentricular ancestor. Origin: Gr.; the same + race, kind. Source: Websters Dictionary (01 Mar 1998) |
| homoglycan | A polysaccharide consisting of only one type of monosaccharide subunit (e.g., glucan). Compare: heteroglycan, glycan. (05 Mar 2000) |
| homogonous | <botany> Having all the flowers of a plant alike in respect to the stamens and pistils. Origin: Gr. See Homogeneous. Source: Websters Dictionary (01 Mar 1998) |
| homogony | <botany> The condition of having homogonous flowers. Source: Websters Dictionary (01 Mar 1998) |
| homeostasis |
(physiology) metabolic equilibrium actively maintained by several complex biological mechanisms that operate via the autonomic nervous system to offset disrupting changes
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| homeotherm |
an animal that has a body temperature that is relatively constant and independent of the environmental temperature
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| homesickness |
a longing to return home
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| homing |
orienting or directing homeward or to a destination; "the homing instinct"; "a homing beacon"
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| hominid |
hominian: characterizing the family Hominidae, which includes Homo sapiens as well as extinct species of manlike creatures a primate of the family Hominidae
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| hom | a longing to return home |
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| hom | a rough loosely woven fabric originally made with homespun yarn |
| hom | made of cloth spun or woven in the home |
| hom | characteristic of country life |
| hom | of textiles |
| hom | a rough loosely woven fabric originally made with homespun yarn |
| hom | dwelling that is usually a farmhouse and adjoining land |
| hom | land acquired from the United States public lands by filing a record and living on and cultivating it under the homestead law |
| hom | the home and adjacent grounds occupied by a family |
| hom | settle land given by the government and occupy it as a homestead |
| hom | a law conferring privileges on owners of homesteads |
| hom | someone who settles lawfully on government land with the intent to acquire title to to it |