Synonym for kidney-shaped ... Having the form or shape of a kidney; reniform; as, a kidney-shaped leaf. ... (01 Mar 1998) ... Found on http://www.encyclo.co.uk/local/20973
Aggregate describing smooth, rounded, kidney-like agglomerations. Rounded agglomerations of reniform aggregates are larger than botryoidal agglomerations but smaller than mammilary agglomerations. Found on http://www.encyclo.co.uk/local/22291
Ren'i·form adjective [ Latin renes kidneys + -form : confer French réniforme .] Having the form or shape of a kidney; as, a reniform mineral; a reniform leaf. Found on http://www.encyclo.co.uk/webster/R/50