'Runnel' definitions:

Definition of 'runnel'

From: WordNet
noun
A small stream [syn: rivulet, rill, run, runnel, streamlet]

Definition of 'Runnel'

From: GCIDE
  • Runnel \Run"nel\, n. [From Run. Cf. Rindle.] A rivulet or small brook. [1913 Webster]
  • Bubbling runnels joined the sound. --Collins. [1913 Webster]
  • By the very sides of the way . . . there are slow runnels, in which one can see the minnows swimming. --Masson. [1913 Webster]

Synonyms of 'runnel'

From: Moby Thesaurus