Natyashastra
अर्धव्याकोशपक्ष्मा च ह्लादार्धमुकुलैः पुटैः । स्मितार्शमुकुला दृष्टिः किञ्चिल्लुलिततारका ॥ ७८॥
Ardhamukulā: The Glance in which owing to joy the eyelids are of the Ardhamukulā: type, the eyeballs are half-blown and slightly mobile is called Ardhamukulā.
english translation
ardhavyAkozapakSmA ca hlAdArdhamukulaiH puTaiH । smitArzamukulA dRSTiH kiJcillulitatArakA ॥ 78॥
hk transliteration by Sanscript