plural of betty

(slang, slightly pejorative) An attractive woman; a babe. / A short bar used by thieves to wrench doors open; a jimmy.

A diminutive of the female given name Elizabeth.

A diminutive of the female given name Elizabeth

A surname from Italian.

plural of Betti

plural of Brown Betty

plural of bouncing Betty

plural of Betti number

(topology, algebraic topology) Any of a sequence of numbers, denoted bₙ, which characterise a given topological space K by giving, for each dimension, the number of holes in K of said dimension; (formally) the rank of the nth homology group, Hₙ, of K.