—v.
1 intr. & tr. flow or cause to flow in drops or a small stream (water trickled through the crack).
2 tr. come or go slowly or gradually (information trickles out).
—n. a trickling flow.
Phrases and idioms:
trickle charger an electrical charger for batteries that works at a steady slow rate from the mains.
Etymology: ME trekel, trikle, prob. imit.
Useful english dictionary. 2012.