plural of Betty lamp

(aviation, slang) A voice warning system in an aircraft.

Alternative form of Betty lamp

Alternative letter-case form of Betty lamp

plural of betty lamp

plural of betty-lamp

(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.

plural of Betti number

plural of bouncing Betty

plural of Brown Betty