autovac

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|automotive|historical}} A [[device]] that uses [[vacuum]] to [[raise]] [[fuel]] from the main [[tank]] to a small [[auxiliary]] tank, from which it [[flow]]s by [[gravity]] to the [[carburetor]], eliminating the (then often unreliable) fuel pump.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.