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迫石 (せりいし) Japanese meaning | Kotomora

迫石せりいし

Meanings

1

noun

voussoir; arch stone; ring stone

Technical term in architecture and stonemasonry for a wedge-shaped stone used in building an arch.

アーチの迫石せりいしは、上うえからの荷か重じゅうを支ささえるために楔くさび形がたに加か工こうされている。
The voussoirs of the arch are shaped like wedges to support the load from above.
石いし橋ばしの迫石せりいしが一ひとつでも欠かけると、全ぜん体たいの強きょう度どが落おちる。
If even one arch stone of the stone bridge is missing, the overall strength decreases.

Kanji

迫urge, force, imminent
石stone

Similar words

アーチ
アーチ is the general term for an arch, while 迫石 refers specifically to the individual wedge-shaped stones that form the arch.
楔くさび石いし
楔石 is a more general term for a wedge-shaped stone, while 迫石 is specifically a voussoir used in arch construction.

Etymology

Compound of 迫 (せり, 'to press, to approach') and 石 (いし, 'stone'), referring to stones that press against each other in an arch. The exact historical derivation is uncertain.