水滴 (suiteki) means “drop of water” | MotiTan Japanese Dictionary

More examples

眼鏡に付いた水滴を柔らかい布で拭き取ります。megane ni tsu i ta sui teki o yawa ra ka i nuno de fu ki to ri ma su

I wipe the water droplets from my glasses with a soft cloth.

Focuses on water seen as a single small bead rather than as a flowing or spread-out surface.

雫shizuku: A small drop of water, often seen hanging or falling.
水玉mizutama: A round bead of water resting on a surface.

物の表面などに付着した、粒状の水。mono no hyō men na do ni fu chaku shi ta tsubu jō no mizu

水滴 (suiteki, "drop of water") combines 水 (sui, "water") with 滴 (teki, "drop"), using their Sino-Japanese readings to form a compound noun.

In natural English, "a drop of water" is the usual phrase for one small amount, while "water droplet" is common when describing a visible bead on glass or another surface.