- the clause expressing the condition in a conditional sentence, in English usually beginning with if.Compare apodosis.
- the first part of an ancient drama, in which the characters are introduced and the subject is proposed.Compare catastasis, catastrophe(def 4), epitasis.
- (in Aristotelian logic) a proposition, especially one used as a premise in a syllogism.
Origin of protasis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for protasis
It is a protasis of the complex order, as M. Lysidas used to say.A Tour Through The Pyrenees
Hippolyte Adolphe Taine
Here we regularly have the Indicative in both Protasis and Apodosis.
The apodosis (qu'est-ce que je ferais) is omitted and only the protasis is expressed.Contes Franais
Douglas Labaree Buffum
The hank time-taking to a hinge one (protasis):—If ye ask (hinge), ye shall receive (hank).An Outline of English Speech-craft
The protasis in Conditional Sentences of this type always remains unchanged.
- logic grammar the antecedent of a conditional statement, such as it rains in if it rains the game will be cancelledCompare apodosis
- (in classical drama) the introductory part of a play
C17: via Latin from Greek: a proposal, from pro- before + teinein to extend