いうせい

Japanese

For pronunciation and definitions of いうせい – see the following entries.

【遊星ゆうせい】 [noun] Synonym of 惑星 (wakusei): planet

【優性ゆうせい】 [noun] (biology, genetics, until 2017) dominance

(This term, いうせい (iusei), is a historical kana spelling of the above terms.)