Last Updated：2025/11/21

(physics) The drawing of a liquid (often against gravity) into or up narrow interstices due to surface tension

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capillary action

Source Word

capillary action

Noun

uncountable

(physics) The drawing of a liquid (often against gravity) into or up narrow interstices due to surface tension

Japanese Meaning

液体が表面張力により、狭い隙間に吸い込まれたり上昇する現象（毛管現象とも呼ばれる）

The capillary action in the narrow glass tube drew water upward against gravity.

細いガラス管では、毛細管現象によって水が重力に逆らって上昇した。

Sense（1）

(physics) The drawing of a liquid (often against gravity) into or up narrow interstices due to surface tension