noun A part of a whole, especially a comparatively small part.
noun A ratio of two numbers (numerator and denominator), usually written one above the other and separated by a horizontal bar called the vinculum or, alternatively, in sequence on the same line and separated by a solidus (diagonal bar).
Gasoline prices show the mill as a fraction, for example $3.59+⁄10.
noun A component of a mixture, separated by fractionation.
noun In a eucharistic service, the breaking of the host.
noun A small amount.
noun The act of breaking, or state of being broken, especially by violence.