conchology

English

conchology (usually uncountable, plural conchologies)

the study of molluscs and their shells
- 1831, L[etitia] E[lizabeth] L[andon], chapter VI, in Romance and Reality. […], volume II, London: Henry Colburn and Richard Bentley, […], →OCLC, page 94:
  "Thank goodness, I am not a child," said Lady Mandeville, turning over a collection of those juvenile tomes, which are to make the rising generation so much wiser than their grandfathers or grandmothers—catechisms of conchology, geology, mathematical questions for infants, geography, astronomy; "the child may be 'father to the man;' but the said father must have had some trouble with his offspring."
- 2011, John Jeremiah Sullivan, Pulphead:
  The least dreadful among the essays stacked and waiting to be corrected would be that of young Master Jefferson Davis, who when imprisoned by Andrew Johnson in 1866 will ask his physician at Fortress Monroe to procure a few volumes of "conchology, geology, or botany," he desiring to commune with the interests of more innocent days.
the hobby of shell collecting

study of molluscs

shell collecting

^ Douglas Harper (2001–2024) “conchology (n.)”, in Online Etymology Dictionary.
^ “conchology, n.”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
^ “conchology, n.”, in OED Online ⁠, Oxford, Oxfordshire: Oxford University Press, launched 2000.