A very thin river.
The brook had shrunk to a mere trickle.
A very thin flow; the act of trickling.
The tap of the washbasin in my bedroom is leaking and the trickle drives me mad at night.
To pour a liquid in a very thin stream, or so that drops fall continuously.
The doctor trickled some iodine on the wound.
To flow in a very thin stream or drop continuously.
Here the water just trickles along, but later it becomes a torrent.
To move or roll slowly.