kidney-shaped

[ kid-nee-sheypt ]

/ ˈkɪd niˌʃeɪpt /

having the general shape of a long oval indented at one side; reniform: a kidney-shaped swimming pool.

Origin of kidney-shaped

First recorded in 1750–60

All four chambers of the cortical shell nearly of the same size and form, kidney-shaped, twice as broad as long.

Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, First Part: Porulosa (Spumellaria and Acantharia) |Ernst Haeckel
The seeds differ from those of alfalfa in being more commonly egg-shaped than kidney-shaped in outline.

Seeds of Michigan Weeds |W. J. (William James) Beal
Anthers heart-shaped or kidney-shaped, confluently 1-celled, shield-shaped after opening, extrorse.

The Manual of the Botany of the Northern United States |Asa Gray
The adult leaf is kidney-shaped, smooth, and five to nine lobed.

Birds and all Nature, Vol. VII, No. 4, April 1900 |Various

On one of these occasions a pair of curious, kidney-shaped earrings was found, together with a torque.

The Arts and Crafts of Older Spain, Volume I (of 3) |Leonard Williams

kidney-shaped

shaped like an oval with an inward curve at one side