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 (ăp′tĭ-to͞od′, -tyo͞od′)
1. An inherent ability, as for learning; a talent: an aptitude for mathematics.
2. Archaic The condition or quality of being suitable; appropriateness.

[Middle English, tendency, from Late Latin aptitūdō, aptitude, from Latin aptus, apt; see apt.]

ap′ti·tu′di·nal (-to͞od′n-əl, -tyo͞od′-) adj.
ap′ti·tu′di·nal·ly adv.


obsolete in a manner that indicates aptitude
References in periodicals archive ?
Aptitudinally similar to his sire, but from a family which has recently produced several outstanding and tough performers over middle distances.
However, the specifically signifying ontological relation is not and cannot be merely dyadic, because the relation of signification does not obtain only between the sign and the signified, but also involves thought, at least - as Mercado put it - "aptitudinally."(52) It is precisely this last involvement that serves as mediator between the other two.