Pro*at"las (?), n. [Pref. pro- + atlas.] (Anat.) A vertebral rudiment
in front of the atlas in some reptiles.
Prob`a*bil"i*o*rism (?), n. The doctrine of the probabiliorists.
Prob`a*bil"i*o*rist (?), n. [From L. probabilior, compar. of probabilis
probable.] (Casuistry) One who holds, in opposition to the
probabilists, that a man is bound to do that which is most probably
right.
Prob"a*bil*ism (?), n. [Cf. F. probabilisme.] The doctrine of the
probabilists.