from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Everyday; commonplace.
  • adjective Recurring daily. Used especially of attacks of malaria.

from The Century Dictionary.

  • Daily; occurring or returning daily: as, a quotidian fever.
  • noun Something that returns or is expected every day; specifically, in medicine, a fever whose paroxysms return every day.
  • noun A cleric or church officer who does daily duty.
  • noun Payment given for such duty.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective Occurring or returning daily.
  • noun Anything returning daily; especially (Med.), an intermittent fever or ague which returns every day.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective found in the ordinary course of events


from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English cotidien, from Old French, from Latin quōtīdiānus, from quōtīdiē, each day : quot, how many, as many as; see kwo- in Indo-European roots + diē, ablative of diēs, day; see dyeu- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Anglo-Norman cotidian, cotidien, Middle French cotidian, cotidien, and their source, Latin cottīdiānus, quōtīdiānus ("happening every day"), from adverb cottīdiē, quōtīdiē ("every day, daily"), from an unattested adjective derived from quot ("how many") + locative form of diēs ("day").



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