CPU chip designed and manufactured by Intel, successor to the 486 chip, introduced in 1993. / A computer having a Pentium processor.

(geometry) A polyiamond made up of five triangles.

(statistics) Any of the four points that divide an ordered distribution into five parts, each containing a fifth (20%) of the population. Used commonly for income distributions.

Obsolete form of pantile (“type of roof tile”).

(rare, of a positional numeral system) Using a base of 5; quinary.

(rare, uncountable) The abstract numeral system underlying any pentimal numeral system; quinary. / (rare, countable) A numeral as written in such a system; a quinary.

plural of pentimal

A criminal who cooperates with police or government authorities and testifies against or provides harmful information on fellow criminals; a turncoat or informant, usually a former Mafioso.

plural of pentito

plural of pentimento