Alternative form of McDonald

(informal, humorous) Donald Trump.

(slang) Wearing no clothes below the waist.

A surname originating as a patronymic.

A city, the parish seat of Ascension Parish, Louisiana, United States.

A female given name

plural of Donaldson-Thomas invariant

(algebraic geometry) The theory of Donaldson-Thomas invariants.

(algebraic geometry) Given a compact moduli space of sheaves on a Calabi-Yau threefold, its Donaldson-Thomas invariant is the virtual number of its points, i.e., the integral of the cohomology class 1 against the virtual fundamental class.