アークaaku

Common
Definitions
  1. nounarc
  2. noun(electric) arc
Synonyms & antonyms
  • Synonym円弧えんこWrittenWritten mathematical term strictly for a segment of a circle's circumference. Besides arcs, 「アーク」 mainly means an electric arc.
  • Related弧こNeutralThe most common everyday word: part of a circle or a similar curve, as in 「弧を描く」. 「アーク」 usually refers to electric arcs.
  • Related弧線こせんWrittenWritten/formal word for a curve forming part of a circle. 「アーク」 is mostly used for electric arcs, as in 「アーク溶接」.

For an arc in general, use 「弧」; in math contexts, 「円弧」. Use 「アーク」 for electric arcs and arc welding, as in 「アーク溶接」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 放電ほうでん時じに生しょうじた熱ねつにより蒸気じょうきが発生はっせいする。この蒸気じょうきを伝つたって電流でんりゅうが流ながれた時ときに発はっする光ひかり。
  2. 扇形せんけいの弧こ長ちょう。角度かくどθに対たいする弧こ長ちょうをarc,θと書かく場合ばあいがある。弧度こど法ほうにおいては常つねにarc,θ=θである。
  3. 逆ぎゃく三角さんかく関数かんすうにつける接頭辞せっとうじ。
English equivalents

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