atomic physics; nuclear physics
meadow, original, primitive, field, plain, prairie, tundra, wilderness
ゲン / はら
child, sign of the rat, 11PM-1AM, first sign of Chinese zodiac
シ / こ
thing, object, matter
ブツ / もの
logic, arrangement, reason, justice, truth
リ / ことわり
study, learning, science
ガク / まな.ぶ