Word.ws English Dictionary

API donut

Syllables: API do·nutUK/ˌeɪpiːaɪ ˈdəʊnʌt/US/ˌeɪpiaɪ ˈdoʊ(ˌ)nʌt/

API donut noun: an information table found on cans of motor oil, conforming to U.S. standards, which indicates the weight (viscosity) and type of oil. The central circle provides the oil viscosity rating (ie. 10W50), while the upper annulus section provides the oil type (ie. SP).

Noun

API donut (plural API donuts)

  1. (US) An information table found on cans of motor oil, conforming to U.S. standards, which indicates the weight (viscosity) and type of oil. The central circle provides the oil viscosity rating (ie. 10W50), while the upper annulus section provides the oil type (ie. SP).

Synonyms of API donut

Forms of API donut

pluralAPI donuts

Origin of API donut

From API + donut; from American Petroleum Institute, and its shape.

Words that rhyme with API donut

Questions about API donut

What does API donut mean?
API donut means an information table found on cans of motor oil, conforming to U.S. standards, which indicates the weight (viscosity) and type of oil. The central circle provides the oil viscosity rating (ie. 10W50), while the upper annulus section provides the oil type (ie. SP).
What part of speech is API donut?
API donut is a noun.
How do you pronounce API donut?
API donut is pronounced /ˌeɪpiːaɪ ˈdəʊnʌt/ (UK).
What is the plural of API donut?
The plural of API donut is API donuts.

Words near API donut in the dictionary

  1. aphysiological
  2. aphæreses
  3. aphæresis
  4. aphæretic
  5. API
  6. API donut
  7. API donuts
  8. API gravities
  9. API gravity
  10. API Service Symbol
  11. API Service Symbols

Source and license

Adapted from Wiktionary: API donut (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:

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