昼ちゅう行こう性せい

noun

diurnality; daytime activity

Refers to the biological trait of being active during the day. Used as a noun in scientific or descriptive contexts.

• 多おおくの霊れい長ちょう類るいは昼ちゅう行こう性せいを示しめす。

  Many primates exhibit diurnality.

noun which may take the genitive case particle 'no'

diurnal

Used adjectivally with の to describe animals or behaviors that occur during the day. Common in biology and ecology.

• この鳥とりは昼ちゅう行こう性せいの種しゅです。

  This bird is a diurnal species.