rill also rille (r l)n. 1. A small brook; a rivulet. 2. A long narrow straight valley on the moon's surface. [Low German rille or Dutch ril, running stream; see rei- in Indo-European roots.] |
rill [rɪl]
n
1. (Earth Sciences / Physical Geography) a brook or stream; rivulet
2. (Earth Sciences / Physical Geography) a small channel or gulley, such as one formed during soil erosion
3. (Astronomy) Also rille one of many winding cracks on the moon
[from Low German rille; related to Dutch ril]
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  rill - a small stream stream, watercourse - a natural body of running water flowing on or under the earth |
| 2. | rill - a small channel (as one formed by soil erosion) channel - a deep and relatively narrow body of water (as in a river or a harbor or a strait linking two larger bodies) that allows the best passage for vessels; "the ship went aground in the channel" |
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