adjective. (of a leaf or bean shape) resembling the shape of kidney.
1. Verb, base form Spatulate resembles an inverted pear, and reniform a mushroom head. 2. Adjective Water lily leaves are generally reniform, with entire margins. 3. Noun, singular or mass Kidney-shaped, or reniform, pools, on the other hand, combine the curves of a circular pool with the elongated shape of a rectangular pool.