(1) A group of individuals related by blood or marriage or by a feeling of closeness. (2) A biological classification of related plants or animals that is a division below the order and above the genus. (3) A group of genes related in structure and in function that descended from an ancestral gene. (4) Parents and their children. The most fundamental social group in humans.
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1. A group of two or more persons united by blood, adoptive, or marital ties, or the common law equivalent. 2. In biologic classification, a taxonomic grouping at the level intermediate between the order and the tribe or genus. 3. A group of substances closely related structurally. 4. A group of proteins with characteristic sequence, pharmacologic, and/or signaling profiles. [L. familia]
- alu f. a set of dispersed sequences in the human genome having Alu cleavage sites at each end.
- alu-equivalent f. a set of sequences in a mammalian genome that is related to the human Alu f..
- cancer f. a group of blood relative s of whom several have had cancer; the mode of aggregation may be genetic and homogeneous, as in familial polyposis of the colon; diverse as in neurofibromatosis; or due to common exposure to a carcinogenic or oncogenic agent, such as a virus.
- extended f. a group of persons comprising members of several generations united by blood, adoptive, marital, or equivalent ties.
- gene f. group of genes related by sequence similarity.
- nuclear f. in genetics, two parents and their progeny in common.

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fam·i·ly 'fam-(ə-)lē n, pl -lies
1) the basic unit in society traditionally consisting of two parents rearing their children also any of various social units differing from but regarded as equivalent to the traditional family <a single-parent \family>
2) a group of related plants or animals forming a category ranking above a genus and below an order and usu. comprising several to many genera
family adj

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fam·I·ly (famґĭ-le) 1. a group of individuals descended from a common ancestor. 2. a taxonomic subdivision subordinate to an order (or suborder) and superior to a tribe (or subfamily). 3. a group of related objects or individuals of any kind.

Medical dictionary. 2011.


Look at other dictionaries:

  • Family — • In the classical Roman period the familia rarely included the parents or the children. Its English derivative was frequently used in former times to describe all the persons of the domestic circle, parents, children, and servants. Present usage …   Catholic encyclopedia

  • Family — Fam i*ly, n.; pl. {Families}. [L. familia, fr. famulus servant; akin to Oscan famel servant, cf. faamat he dwells, Skr. dh[=a]man house, fr. dh[=a]to set, make, do: cf. F. famille. Cf. {Do}, v. t., {Doom}, {Fact}, {Feat}.] 1. The collective body… …   The Collaborative International Dictionary of English

  • Family — (engl. für „Familie“) war eine experimentierfreudige und schwer zu kategorisierende britische Rock Band um den Sänger Roger Chapman. Mit ihrer ungewöhnlichen Mischung aus wilder Bühnenpräsenz und musikalischer Feinsinnigkeit erwarb sich die Band… …   Deutsch Wikipedia

  • Family — Жанры прогрессив рок блюз рок психоделический рок хард рок Годы 1967 1973 …   Википедия

  • family — fam·i·ly / fam lē, fa mə / n pl lies 1: a group of individuals related by blood, marriage, or adoption 2: a group of usu. related individuals who live together under common household authority and esp. who have reciprocal duties to each other ◇… …   Law dictionary

  • family — (n.) c.1400, servants of a household, from L. familia family servants, domestics; also members of a household, including relatives and servants, from famulus servant, of unknown origin. Ancestral sense is from early 15c.; household sense recorded …   Etymology dictionary

  • family — family. См. семейство. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Family — fue un grupo de pop vasco, formado por los músicos Javier Aramburu (voz, guitarras, programaciones) e Iñaki Gametxogoikoetxea (bajo y programaciones), con gran influencia en la música española de finales del siglo XX …   Enciclopedia Universal

  • Family — For other uses, see Family (disambiguation). Relationships …   Wikipedia

  • family — /fam euh lee, fam lee/, n., pl. families, adj. n. 1. parents and their children, considered as a group, whether dwelling together or not. 2. the children of one person or one couple collectively: We want a large family. 3. the spouse and children …   Universalium

  • family — fam|i|ly W1S1 [ˈfæməli] n plural families ▬▬▬▬▬▬▬ 1¦(closely related group)¦ 2¦(all your relations)¦ 3¦(children)¦ 4 family size/pack etc 5¦(group of animals/things)¦ 6 she s/he s family 7 in the family way ▬▬▬▬▬▬▬ [Date: 1400 1500; …   Dictionary of contemporary English

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