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1. A rivulet; a brook.
2. A narrow channel or course, as for water.

[Middle English rynel, from Old English, from rinnan, to run; see rei- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Physical Geography) literary a small stream
[C16: from Old English rynele; related to run]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈrʌn l)

also run•let

(ˈrʌn lɪt)

1. a small stream; rivulet.
2. a small channel, as for water.
[1570–80; alter., by assimilation to run (n.), of rinel, Old English rynel(e), rinnele = rin-, base of run + -el -le]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.runnel - a small streamrunnel - a small stream      
stream, watercourse - a natural body of running water flowing on or under the earth
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
In one place a bake-house had been built out into the middle of the roadway; in another a gable protruded, partially obstructing the passage, and yet farther on a mountain stream flowed across it in a runnel. Genestas noticed a fair number of roofs of tarred shingle, but yet more of them were thatched; a few were tiled, and some seven or eight (belonging no doubt to the cure, the justice of the peace, and some of the wealthier townsmen) were covered with slates.
And while they talked, the voices of the snow-waters round them diminished one by one as the night- frost choked and clogged the runnels.'
Several western king birds perched on the impenetrable Tule reeds fortifying the runnel's banks swayed in the warm breeze.
runnel of scissor sucking red ribbon into its current then releasing it,
A terraced stormwater fountain and runnel system utilizes captured stormwater to create human connections with natural systems and to reduce stormwater leaving the site.
Edited by Pille Runnel and Pille Pruulmann-Vengerfeldt
by Pille Runnel, Pille Pruulmann-Vengerfeldt, Piret Viires, and Marin Laak.
Poems with scathing jokes about consumerism, devaluation of intellectual riches, and disregard of social concerns share the spirit of the socially critical poems of Hando Runnel, published in 1982, which ridiculed the Soviet bureaucracy and earned the author the reputation of an anti-Soviet dissident.
Any members of the public who want to cycle the last few kilometres of the Lytham St Anne to Neston stage with the riders can join the cyclists at 3.30pm at the Junction of The Runnel and the A540 in Parkgate.
According to the director of the festival, Pille Runnel, the central topic of the film program is aging.
Each buttress incorporates a runnel that carries rain from the roof into channels within the plaza paving and then into the Fraser River, diverting the water from the sewer system.