第三眼瞼 dì sān yǎn jiǎn

DEFINITIONS

  1. nictitating membrane (zoology)

CHARACTERS

第 dì
HSK 2
sequence, number; grade, degree
三 sān
HSK 1
three
眼 yǎn
HSK 2
eye; eyelet, hole, opening
瞼 jiǎn eyelid