The transfer of pollen grains from anther to stigma (of same plant) is known as self pollination. The transfer of pollen grains from anther of one plant to stigma of another plant is known as cross pollination.
The trandfer of pollengrain from anther to stigma is known as pollengrain

Pollination is a method where pollen grains are picked from an anther, which is the male part of a flower and transferred to the flower’s female part called as a stigma. To make the pollination work successfully, the pollen grains must be transferred from the same species of flower.

The transfer of pollen grains from the anther of the stamen to the stigma of a flower.
Transfer of pollen grain from anther to stigma is known as pollination .
Une process of transferring pollen to ova