The Collaborative International Dictionary of English v.0.48:

Chemist \Chem"ist\, n. [Shortened from alchemist; cf. F.
   chimiste.]
   A person versed in chemistry or given to chemical
   investigation; an analyst; a maker or seller of chemicals or
   drugs.
   [1913 Webster]

WordNet (r) 3.0 (2006):

chemist
    n 1: a scientist who specializes in chemistry
    2: a health professional trained in the art of preparing and
       dispensing drugs [syn: pharmacist, druggist, chemist,
       apothecary, pill pusher, pill roller]

Moby Thesaurus II by Grady Ward, 1.0:

58 Moby Thesaurus words for "chemist":
   antique store, apothecary, automobile showroom, bookstore, bootery,
   candy store, cigar store, clothiers, clothing store, confectionery,
   dispensary, dispensatory, dispenser, dress shop, druggist,
   drugstore, dry goods store, florists, fur salon, furniture store,
   gallipot, gift shop, haberdashery, hardware store, hat shop,
   hobby shop, ironmongery, jewelers, jewelry store,
   leather goods store, liquor store, luggage shop, milliners,
   novelty shop, package store, pharmaceutist, pharmacist, pharmacy,
   posologist, saddlery, schlock house, schlock shop, secondhand shop,
   secondhand store, shoe store, smoke shop, specialty shop,
   sporting goods store, stationers, stationery store, sweater shop,
   sweet shop, thrift shop, tobacco store, tobacconists, toy shop,
   trimming store, used-car lot



The Jargon File (version 4.4.7, 29 Dec 2003):

chemist
 n.

    [Cambridge] Someone who wastes computer time on number-crunching when
    you'd far rather the machine were doing something more productive, such as
    working out anagrams of your name or printing Snoopy calendars or running 
    life patterns. May or may not refer to someone who actually studies
    chemistry.


The Free On-line Dictionary of Computing (30 December 2018):

chemist

    (Cambridge) Someone who wastes computer time on
   number crunching when you'd far rather the computer were
   working out anagrams of your name or printing Snoopy calendars
   or running life patterns.  May or may not refer to someone
   who actually studies chemistry.

   [Jargon File]

   (1995-02-07)