English Explanatory Dictionary

API donut

English dictionary entry

Meanings

noun
  1. 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).

Pronunciation

/ˌeɪpiːaɪ ˈdəʊnʌt/ /ˌeɪpiaɪ ˈdoʊ(ˌ)nʌt/

Word forms

API donut API donuts

Etymology

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

Synonyms

API Service Symbol
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