cold trap

Fetched 2026-10-26 (cache).

Synonyms: cold tray, cold snap, cold drop, wolf trap, cold draw, pole trap

Antonyms: cold tray, cold snap, cold drop, wolf trap, cold draw, pole trap

Related words from Datamuse; suggestions, not definitions.

Noun

1. In [[vacuum]] applications, a [[device]] that [[condense]]s all [[vapour]]s except the [[permanent gas]]es into a [[liquid]] or [[solid]], typically to prevent [[contamination]] of a [[vacuum pump]].
2. {{lb|en|astronomy}} An [[atmospheric]] layer that is significantly [[cold]]er than the adjacent layers both deeper and higher. It keeps ascending gases that have high melting points from escaping the atmosphere by freezing them to a solid which then drops back to the [[planet]] surface.

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