prepollent

CIDE DICTIONARY

prepollent, a. [L. praepollens, p. p. of praepollere to surpass in power; prae before + pollere to be powerful.].

Having superior influence or power; prevailing; predominant. Boyle. [1913 Webster]

prepollent, n. [NL. See Pre-, Pollex.].

An extra first digit, or rudiment of a digit, on the preaxial side of the pollex. [1913 Webster]