Word.ws English Dictionary

O.D.

O.D. is the alternative form of OD.

Meaning of OD

Noun

OD (countable and uncountable, plural ODs)

  1. (of a pipe, tube, or shaft) Initialism of outer diameter or outside diameter.
    Antonyms:
    ID

See all 4 meanings of od

Questions about O.D.

What is O.D. the alternative form of?
O.D. is the alternative form of OD.

Words near O.D. in the dictionary

  1. O. P. P.s
  2. O. S.
  3. O. Yeung
  4. o.b.o.
  5. O.C.
  6. O.D.
  7. O.G.
  8. O.G.s
  9. O.K.
  10. O.M.
  11. O.M.G.

Source and license

Adapted from Wiktionary: O.D. (page history and authors); OD (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.

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