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Webster 1913 Edition

Noun.

[

Conch

-logy

(Zool.)

The science of Mollusca, and of the shells which they form; malacology.

Noun.

[Gr. A shell and discourse.] The doctrine or science of shells and shellfish.

conchology ‎(usually uncountable, plural conchologies)

study of molluscs

shell collecting