frost hollow

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Related to frost hollows: frost pocket

frost hollow

[′frȯst ‚häl·ō]
(meteorology)
A small, low-lying zone which experiences frequent and severe frosts owing to the accumulation of cold night air; often severe where hills block the afternoon sunshine.
References in periodicals archive ?
Tree-free hollows in woodland areas are often referred to as frost hollows since cold air drains into these hollows and kills tree and shrub seedlings.