noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A crack in the earth produced by solar heat.
2. 2
   One of the superficial markings frequently seen on the surfaces of thin-bedded flagstones and argillaceous sandstones.

Etymology

From sun + crack.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.