中央凹 zhōng yāng āo

central fovea of retina; sharpest vision spot

Word data

HSK Not in HSK
Frequency Unknown

Definitions

  1. 1. fovea centralis (depression in the macula retina, most sensitive optic region)

Characters

Character Meaning
中 zhōng HSK 1
in; within; middle
央 yāng HSK 6
center; to beg; to plead
凹 āo HSK 6
concave; sunken; indented