adj · 7 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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/həˈmɒləɡəs/
US:Recorded audio is listed in the source snapshot.
CMU ARPABET:HH AA0 M AA1 L AH0 G AH0 S
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Showing a degree of correspondence or similarity.
In corresponding proportion.
Definition source: English Wiktionary via Wiktextract
Topics: mathematics, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
adj
Meaning 2
Showing a degree of correspondence or similarity.
Corresponding to a similar structure in another life form with a common evolutionary origin.
Definition source: English Wiktionary via Wiktextract
Topics: biology, natural-sciences
Examples
Flippers and hands are homologous structures.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
adj
Meaning 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.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
adj
Meaning 5
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.
Definition source: English Wiktionary via Wiktextract
Qualifier: cultural anthropology; structural anthropology; cultural anthropology; structural anthropology
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
adjective
Meaning 6
corresponding or similar in position or structure or function or characteristics; especially derived from an organism of the same species
Definition source: Princeton WordNet 3.0
Examples
a homologous tissue graft
Meaning relationships
Synonyms: none provided
Antonyms: heterologous, autologous
7
adjective
Meaning 7
having the same evolutionary origin but not necessarily the same function
Definition source: Princeton WordNet 3.0
Examples
the wing of a bat and the arm of a man are homologous
Meaning relationships
Synonyms: none provided
Antonyms: heterologous, analogous
History
Etymology
Etymology tree Proto-Indo-European *sem- Proto-Indo-European *somHós Proto-Hellenic *homós Ancient Greek ὁμός (homós) Proto-Indo-European *leǵ- 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.
Across languages
Translations
28 source translations are retained for this English entry.
Bulgarian:
съответен
(sǎotveten)
— showing a degree of correspondence
Finnish:
samankaltainen
— showing a degree of correspondence
French:
homologue
— showing a degree of correspondence
German:
homolog
— showing a degree of correspondence
Greek:
ομόλογος
(omólogos)
— showing a degree of correspondence
Portuguese:
homólogo
— showing a degree of correspondence
Romanian:
omolog
— showing a degree of correspondence
Spanish:
homólogo
— showing a degree of correspondence
Bulgarian:
хомоложен
(homoložen)
— (biology) corresponding to a similar structure in another life form
Finnish:
homologinen
— (biology) corresponding to a similar structure in another life form
French:
homologue
— (biology) corresponding to a similar structure in another life form
German:
homolog
— (biology) corresponding to a similar structure in another life form
Greek:
ομόλογος
(omólogos)
— (biology) corresponding to a similar structure in another life form
Portuguese:
homólogo
— (biology) corresponding to a similar structure in another life form
Spanish:
homólogo
— (biology) corresponding to a similar structure in another life form
Bulgarian:
хомоложен
(homoložen)
— (chemistry) belonging to a series of aliphatic organic compounds
Finnish:
homologinen
— (chemistry) belonging to a series of aliphatic organic compounds
French:
homologue
— (chemistry) belonging to a series of aliphatic organic compounds
German:
homolog
— (chemistry) belonging to a series of aliphatic organic compounds
Portuguese:
homólogo
— (chemistry) belonging to a series of aliphatic organic compounds
Spanish:
homólogo
— (chemistry) belonging to a series of aliphatic organic compounds
Czech:
homologní
— (genetics) having the same morphology as another chromosome
Finnish:
homologinen
— (genetics) having the same morphology as another chromosome
French:
homologue
— (genetics) having the same morphology as another chromosome
German:
homolog
— (genetics) having the same morphology as another chromosome
Greek:
ομόλογος
(omólogos)
— (genetics) having the same morphology as another chromosome
Portuguese:
homólogo
— (genetics) having the same morphology as another chromosome
Spanish:
homólogo
— (genetics) having the same morphology as another chromosome