collateral vessel

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|anatomy}} A [[small]] [[blood vessel]] that [[connect]]s to a [[main]] [[blood vessel]] and [[provide]]s an [[alternate]] [[route]] of [[perfusion]], and not [[use]]d by the [[circulatory system]] until [[need]]ed.

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