पसीने की बूँद।

उनके माथे से स्वेद-बिंदु टपक रहे हैं।
स्वेद बिंदु, स्वेद बूँद, स्वेद-बिंदु, स्वेद-बूँद

A small indefinite quantity (especially of a liquid).

He had a drop too much to drink.
A drop of each sample was analyzed.
There is not a drop of pity in that man.
Years afterward, they would pay the blood-money, driblet by driblet.
drib, driblet, drop