Found 2 items, similar to rima.
English → English (WordNet)
Definition: rima
rima
n : a narrow elongated opening or fissure between two
symmetrical parts
[also: 
rimae (pl)]
English → English (gcide)
Definition: Rima
Rima 
\Ri"ma\, n.; pl. 
Rim[ae]. [L.] (Anat.)
A narrow and elongated aperture; a cleft; a fissure.
[1913 Webster]