Dictionary

homologous en · ADJ

Pronunciation

• /həˈmɒləɡəs/
• (US) audio

Etymology

Etymology tree Proto-Indo-European *sem- Proto-Indo-European *-os Proto-Indo-European *-ós Proto-Indo-European *-ós Proto-Indo-European *somHós Proto-Hellenic *homós Ancient Greek ὁμός (homós) Proto-Indo-European *leǵ- Proto-Indo-European *-os Proto-Indo-European *lóǵos Proto-Hellenic *lógos Ancient Greek λόγος (lógos) Ancient Greek -λογος (-logos) Ancient Greek ὁμόλογος (homólogos)der. Late Latin homologusder. English homologous From Late Latin homologus, from Ancient Greek ὁμόλογος (homólogos, “agreeing, of one mind”), from ὁμός (homós, “same”) + λόγος (lógos, “reason, reckoning”). Compare homo- (“same”) and -ous (adjectival suffix). From 1655, in the mathematical sense. See also homolog, homologue.

Meanings

1. Showing a degree of correspondence or similarity. ▸ In corresponding proportion.
   • Of equiangle triangles, the ſides that are about equall angles are proportionall, and the ſides that ſubtend the equall angles are homologous. 1655, Thomas Stanley, “[Thales.] Chap[ter] VII. Of His Geometry.”, in The History of Philosophy. […], volume I, London: […] Humphrey Moseley, and Thomas Dring, […], →OCLC, 1st part ([Containing Those on whom the Attribute of Wise was Conferr’d]), page 18:
2. Showing a degree of correspondence or similarity. ▸ Corresponding to a similar structure in another life form with a common evolutionary origin.
   • Flippers and hands are homologous structures.
   • Lobules, homologous in structure, recur again only in the Gondwanalandic families Lepidolaenaceae and Jubulopsidaceae thus in the Lepidolaenineae. 1992, Rudolf M[athias] Schuster, The Hepaticae and Anthocerotae of North America: East of the Hundredth Meridian, volume V, Chicago, Ill.: Field Museum of Natural History, →ISBN, page 4:
3. Showing a degree of correspondence or similarity. ▸ Belonging to a series of aliphatic organic compounds that differ only by the addition of a CH₂ group.
4. Showing a degree of correspondence or similarity. ▸ Having the same morphology as another chromosome or locus; relating to a homologue.
5. (qualifier:cultural anthropology; structural anthropology; cultural anthropology; structural anthropology) Showing a degree of correspondence or similarity. ▸ Playing the same role as seen in another culture, whether by historical connection, psychological archetype, convergent cultural evolution, or otherwise (as may be hypothesized but not known with certainty by current science), as for example with the cryptozoologic concepts of yeti and sasquatch, the use of polite and familiar pronouns, or other similarities.

Forms

Antonyms

heterologous

Coordinates

homoeologous · analogous · homomorphic · heterologous · homoeologous · homomorphic

Deriveds

vinylogous · homologisation · homologous series · homologous recombination · nonhomologous · interhomologous · semihomologous · intrahomologous · homologous blood donation · cohomologous · microhomologous · homologously · unhomologous · homologous pair

Relateds

homology · homologation · homologue · homolog · homologize · autologous

Translations (28)

el ομόλογος ((biology) corresponding to a similar structure in another life form) · fi homologinen ((chemistry) belonging to a series of aliphatic organic compounds) · fi homologinen ((biology) corresponding to a similar structure in another life form) · fr homologue ((chemistry) belonging to a series of aliphatic organic compounds) · el ομόλογος ((genetics) having the same morphology as another chromosome) · pt homólogo ((chemistry) belonging to a series of aliphatic organic compounds) · fr homologue (showing a degree of correspondence) · cs homologní ((genetics) having the same morphology as another chromosome) · es homólogo ((genetics) having the same morphology as another chromosome) · fr homologue ((biology) corresponding to a similar structure in another life form) · el ομόλογος (showing a degree of correspondence) · es homólogo (showing a degree of correspondence) · de homolog ((biology) corresponding to a similar structure in another life form) · de homolog (showing a degree of correspondence) · bg хомоложен ((chemistry) belonging to a series of aliphatic organic compounds) · de homolog ((chemistry) belonging to a series of aliphatic organic compounds) · pt homólogo ((biology) corresponding to a similar structure in another life form) · pt homólogo ((genetics) having the same morphology as another chromosome) · de homolog ((genetics) having the same morphology as another chromosome) · pt homólogo (showing a degree of correspondence) · es homólogo ((chemistry) belonging to a series of aliphatic organic compounds) · fi homologinen ((genetics) having the same morphology as another chromosome) · bg хомоложен ((biology) corresponding to a similar structure in another life form) · fr homologue ((genetics) having the same morphology as another chromosome) · es homólogo ((biology) corresponding to a similar structure in another life form) · ro omolog (showing a degree of correspondence) · fi samankaltainen (showing a degree of correspondence) · bg съответен (showing a degree of correspondence)