black frost

noun

1. intense cold without hoarfrost, causing vegetation to turn black. Compare frost ( def 2 ).

black frost

noun

1. a frost without snow or rime that is severe enough to blacken vegetation

Word History and Origins

Origin of black frost¹

First recorded in 1700–10

Example Sentences

The day had been intensely cold, with a biting north-east wind and black frost.

From Project Gutenberg

In a hearty black-frost they look small, until the snow falls over them.

From Project Gutenberg

The black frost has settled upon bloom and foliage on the upper terrace.

From Project Gutenberg

A desolate afternoon, with a low leaden sky threatening snow, and earth like iron with hard black frost.

From Project Gutenberg

No wheels can get along them, except in the very height of summer, or a dry black-frost.

From Project Gutenberg