a. [f. prec. + -AL. Cf. mod.F. conceptionnel.] Pertaining to, or of the nature of, a conception or iden.

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1855.  Milman, Lat. Chr. (1864), IX. XIV. iii. 129. Intelligences … peopled with the same ideas, representatives of things, conceptional entities, even words.

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1875.  Whitney, Life Lang., v. 90. More abstract and conceptional.

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  Hence † Conceptionalist Obs. rare1, erroneous form of CONCEPTUALIST.

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1854.  C. Richardson, Stud. Lang., 108. They have yet to satisfy themselves whether he [Aristotle] was a realist, nominalist, or conceptionalist.

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