Found 2 items, similar to rill.
English → English (WordNet) Definition: rill rill n 1: a small stream [syn: rivulet, run, runnel, streamlet] 2: a small channel (as one formed by soil erosion)
English → English (gcide) Definition: Rill Rill \Rill\ (r[i^]l), n. [Cf. LG. rille a small channel or brook, a furrow, a chamfer, OE. rigol a small brook, F. rigole a trench or furrow for water, W. rhill a row, rhigol a little ditch. [root]11.] 1. A very small brook; a streamlet. [1913 Webster] 2. (Astron.) See Rille. [1913 Webster] Rill \Rill\, v. i. To run a small stream. [R.] --Prior. [1913 Webster]