v. & n.
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. trickle charger an electrical charger for batteries that works at a steady slow rate from the mains.
[ ME trekel, trikle, prob. imit. ]