Bhakti-rasāmṛta-sindhu .1.16
tatra smitam –
[tatra smitam –]
smitaṁ tv alakṣya-daśanaṁ netra-gaṇḍa-vikāśa-kṛt ||16||
[smitam tv alakshya-dashanam netra-ganda-vikaasha-krit ||16||]
Blended reading (Sanskrit + English inline)
tatra smitam –
smitaṁ tv alakṣya-daśanaṁ netra-gaṇḍa-vikāśa-kṛt ||16||
When the teeth are not seen and the eyes and cheeks become joyful it is called smita (slight smile).
Purport
When one is smiling but his teeth are not visible, one can distinctly mark a definite change in the eyes and in the cheeks. This is called smita smiling.
— A.C. Bhaktivedanta Swami Prabhupāda
My note
Source: vedabase.io