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窩洞 (かどう, kadou) Japanese meaning: dental cavity | Kotomora

窩か洞どう

Meanings

1

dental cavity; cavity (from caries)

Technical term in dentistry for a cavity formed by tooth decay.

歯し科か医いは窩か洞どうをレジンで充じゅう填てんした。
The dentist filled the cavity with resin.

Kanji

窩cave, pouch
洞den, cave, excavation

Related words

虫むし歯ば
Common word for a decayed tooth or cavity; 窩洞 is a clinical term for the cavity itself.
う蝕しょく
Medical term for dental caries; 窩洞 refers specifically to the resulting hole.

Etymology

Compound of 窩 (hole, pit) and 洞 (cavity, hollow), both kanji with meanings related to hollow spaces. The exact historical derivation is uncertain; the term is used in modern dentistry.