Webster’s Revised Unabridged Dictionary · 1913
Trough-shell
Trough′-shell′ (·shĕl′), n. (Zoöl.) Any bivalve shell of the genus Mactra. See Mactra.
Webster’s Revised Unabridged Dictionary · 1913
Trough′-shell′ (·shĕl′), n. (Zoöl.) Any bivalve shell of the genus Mactra. See Mactra.