lacks is a form of:

Eyeball



noun
1.
(the ball of the eye within the lids) គ្រាប់ភ្នែក, កែវភ្នែក
2.
(វេជ្ជសាស្ត្រ) គ្រាប់ភ្នែក
ENGLISH MEANING
noun
1.
The ball or globe of the eye.