sagitta

IPA(Pronunciation)

/səˈd͡ʒɪt.ə/

Noun

The keystone of an arch. / (geometry) The distance from a point in a curve to the chord; also, the versed sine of an arc; so called from its resemblance to an arrow resting on the bow and string.

Japanese Meaning

アーチの要石（アーチを形成する石の中心に位置する、構造上重要な部分） / 幾何学においては、曲線上の一点から弦への垂直距離、または円弧の逆弦（versine）

What is this buttons?

The mason carefully set the sagitta in place, knowing it would bear the weight of the entire arch.

Google Translation / DeepL Translation

石工はアーチ全体の重さを支える鍵石を慎重に据え付けた。

Details

Sense（1）

The keystone of an arch.

Sense（2）

(geometry) The distance from a point in a curve to the chord; also, the versed sine of an arc; so called from its resemblance to an arrow resting on the bow and string.

Sense（3）

(zootomy) The larger of the two otoliths, or earbones, found in most fishes.

Sense（4）

Any arrowworm, of the genus Sagitta.

sagittas

（ plural ）

sagittae

（ error-unknown-tag plural ）

Details

sagitta

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