reniform leaf (noun)

1. The protagonist in the novel was described as having reniform leaves on his coat lapel, symbolizing his gentle and nurturing nature.

2. In the futuristic world of the science fiction novel, the alien species had reniform leaves as their primary means of photosynthesis.

3. The haunted house had a peculiar garden where all the plants had reniform leaves, giving a creepy and unnatural vibe to the surroundings.

4. The interior designer incorporated a natural element by using wallpaper with a pattern featuring reniform leaves, adding a touch of tranquility to the room's atmosphere.