General noun for liquid falling in drops or a thin stream; can refer to the act of dripping or the drops themselves.
蛇口から水の滴りが止まらない。
The dripping of water from the faucet won't stop.
water trickling from moss, rocks, or cliffs in summer
Seasonal word (kigo) for summer, evoking the cool, refreshing sight or sound of water seeping from natural surfaces.
夏の山道で、苔むした岩からの滴りが涼しげだ。
On a summer mountain path, the water trickling from mossy rocks looks refreshingly cool.
葉の先から雨の滴りが落ちている。
Raindrops are dripping from the tips of the leaves.
trickle down; drip down
Derived from the verb 滴る (したたる, 'to drip'). The noun form 滴り nominalizes the continuative stem, referring to the act or result of dripping.