A binary map in a given ring R, given by [a, b] = ab − ba, where a and b are elements of R, which yields the ring's zero element if and only if the multiplication operation commutes for a and b.
A binary map in a given group G, given by [g, h] = ghg⁻¹h⁻¹, where g and h are elements of G, which yields the group's identity if and only if the group operation commutes for g and h.
An electrical switch, in a generator or motor, that periodically reverses the direction of an electric current.
A symbol used for separating the fractional part of a decimal number from the whole part, for indicating multiplication or a scalar product, or for various other purposes.
A small, round spot.
buckshot, projectile from a "dotty" or shotgun
A dot ball.
One of the two symbols used in Morse code.
A punctuation mark used to indicate the end of a sentence or an abbreviated part of a word; a full stop; a period.
A point used as a diacritical mark above or below various letters of the Latin script, as in Ȧ, Ạ, Ḅ, Ḃ, Ċ.
Anything small and like a speck comparatively; a small portion or specimen.
A dowry.
Dot product of the previous vector and the following vector.
To punch (a person).
To mark or diversify with small detached objects.
To cover with small spots (of some liquid).
To add a dot (the symbol) or dots to.
To mark by means of dots or small spots.