重じゅう力りょく相そう互ご作さ用よう

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Meanings

1

noun

gravitational interaction

physics

Technical term in physics referring to the fundamental interaction mediated by gravity.

重じゅう力りょく
重力 is the general term for gravity, while 重力相互作用 specifically refers to the interaction aspect in physics.
相そう互ご作さ用よう
相互作用 means interaction in general; 重力相互作用 narrows it to gravitational interaction.

Compound of 重力 (gravity) and 相互作用 (interaction), a calque from English 'gravitational interaction'.