Word.ws English Dictionary

iso-

Syllables: i·so-UK/aɪsə-//aɪsə-/

iso- prefix: same, identical.

Prefix

iso-

  1. Same, identical.
    • iso- + effect → isoeffect
    • iso- + intense → isointense
    Synonyms:
    ipsi-, homo-, syn-//sym-
    Antonyms:
    hetero-, allo-
  2. Equal; equivalent.
    • iso- + rhythm → isorhythm
    Synonyms:
    equi-, pari-
    Antonyms:
    aniso-
  3. Isomer.
    • iso- + methadone → isomethadone
  4. Of an aliphatic compound, especially a fatty acid, having a branch on the penultimate carbon atom of a chain.
    • iso- + hexane → isohexane
  5. Forms terms for specific kinds of isolines.
    • iso- + -therm → isotherm
    • iso- + -chrone → isochrone
  6. Isomorphism.

iso- meaning in Tamil

iso- in Tamil

சம

Synonyms of iso-

Antonyms

Forms of iso-

alternative before-vowelis-

Origin of iso-

Internationalism. Learned borrowing from Ancient Greek ἴσος (ísos, “equal”).

Words formed from iso-

  • anteiso-
  • isohilbert space
  • isoinner product
  • isolocal
  • isomanifold
  • isosymmetry
  • isotransformation

Questions about iso-

What does iso- mean?
Iso- means same, identical.
What is iso- in Tamil?
Iso- in Tamil is சம. See Iso- meaning in Tamil.
What part of speech is iso-?
Iso- is a prefix.
How do you pronounce iso-?
Iso- is pronounced /aɪsə-/ (UK).

Words near iso- in the dictionary

  1. Isnotreal
  2. isnt
  3. Isntreal
  4. iso
  5. iso'd
  6. iso-
  7. iso-octane
  8. iso-octanes
  9. iso-octanol
  10. iso-osmolar
  11. iso-osmotic

Source and license

Adapted from Wiktionary: iso- (page history and authors); iso- (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-iso-.wav.

Cite this entry: “iso-.” Word.ws, https://word.ws/iso-. Based on Wiktionary, CC BY-SA 4.0.