rill

Synonyms

Antonyms

Rill, n. Etym: [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. sq. root11.] 1. A very small brook; a streamlet. 2. (Astron.) Defn: See Rille. Rill, v. i. Defn: To run a small stream. [R.] Prior.