That rill is 1. small solution groove on surface exposures of limestone; most common in arid or semiarid areas [10]. 2. small channel cut by flowing water in the floor, wall, or ceiling of a cave [20]. 3. the smallest category of stream in any terrane [20]. synonyms: (french.) traces de ruissellement; (german.) rinne, kerbe; (greek.) riakion; (italian.) solchi di ruscellamento; (spanish.) arroyuelo; (turkish.) kucuk dere, oluk, ark.?
Checkout all 2699 terms in the KarstBase Glossary of Karst and Cave Terms