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開度 (かいど) Japanese meaning | Kotomora

開かい度ど

Meanings

1

noun

degree of opening; aperture; divergence

Technical term used in engineering, optics, and mechanics to describe how wide something is open, such as a valve, lens, or angle.

バルブの開かい度どを調ちょう整せいして流りゅう量りょうを制せい御ぎょする。
Adjust the valve opening to control the flow rate.
レンズの開かい度どを変かえると、写しゃ真しんの明あかるさが変かわる。
Changing the lens aperture alters the brightness of the photo.

Kanji

開open, unfold, unseal
度degrees, occurrence, time

Similar words

開かい口こう
開口 (aperture, opening) is a more general term for an opening or hole, while 開度 specifically refers to the measurable degree or extent of opening.
角かく度ど
角度 (angle) is a geometric measure, whereas 開度 is used for the degree of opening in mechanisms or optical systems.

Etymology

Compound of 開 (kai, 'open') and 度 (do, 'degree'). The exact historical derivation is uncertain, but the word follows a common Sino-Japanese pattern for technical terms.