angle of friction

(grammar) ergative

a floor or storey in a building

(literary, rare) by the ocean

(grammar) declension

(figuratively) vulgar, tasteless behaviors that spoil elegant or beautiful things

Short for 確率変動 (kakuritsu hendō).

nuclear / atomic / nuclear power / core / kernel

shell

Short for 関東 (Kantō):: the Kantō region of Japan / Short for 東国 (Tōgoku): a historical administrative division of Japan, corresponding to the modern Kantō and Tōkai regions / Short for 東京 (Tōkyō): Tokyo