also: かいていだに
submarine valley; submarine canyon
Geological term for a valley or canyon on the seafloor. Used in oceanography and earth science contexts.
Submarine canyons are often found at the outer edge of continental shelves.
This submarine valley is thought to have been formed by river erosion.
Standard kanji spelling; the reading かいていこく is the regular on'yomi-based pronunciation.
Irregular kun'yomi reading; marked as irregular kana usage. Rarely used.
Compound of 海底 (かいてい, 'seabed') and 谷 (こく, 'valley'). The reading こく for 谷 is the on'yomi used in many geological compounds.