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流動物 (ryuudoubutsu) Japanese meaning: fluid | Kotomora

流りゅう動どう物ぶつ

りゅ

う

ど

う

ぶ

つ

Meanings

1

fluid; liquid substance

Technical or formal term for a substance that flows, including liquids and gases. Often used in scientific or industrial contexts.

この装そう置ちは流りゅう動どう物ぶつの粘ねん度どを測そく定ていします

。

This device measures the viscosity of fluids.

Kanji

流current, a sink, flow
動move, motion, change
物thing, object, matter

Related words

流りゅう体たい
More common general term for fluid in physics and engineering. 流動物 is less frequent and may emphasize the material or substance aspect.
液えき体たい
Specifically liquid, not gas. 流動物 can include both liquids and gases.

Built from

流りゅう+動どう物ぶつ

Etymology

Compound of 流動 (flow, movement) + 物 (thing, substance). The exact historical derivation is uncertain, but the term is a straightforward technical coinage.