heart shell

noun

1. any of numerous bivalve mollusks, especially of the families Cardiidae and Carditidae, having a heart-shaped shell.
2. the shell itself.

Word History and Origins

Origin of heart shell¹

First recorded in 1745–55

Example Sentences

Thus the "Two Badgers" were made keepers of the sacred heart-shell (sti kili achi), makers and wardens of fire.

From Project Gutenberg