(mathematics) Either of two spaces between which an isometry exists

(mathematics) Any metric space whose elements are functions

(of text) Formatted so that there is a full blank line between each line of text; the style of formatting required by many entities inside business, academia, and publishing.

simple past tense and past participle of double-space

(anatomy) Any of the spaces between the placental villi that contain maternal blood

That part of an optical system where real or virtual images are formed

The vector product of the translational and angular displacements of each joint of a robotic link; all the places that a robotic arm can access. / (anatomy) The space in a joint between two bones.

(mathematics) Any topological space which cannot be written as the disjoint union of two or more nonempty open spaces.

Sufficient space or a span of time in which to recover one's breath. / A rest, pause, or respite. / Enough distance so that one can feel unfettered.

A variable width space, or a number of space characters, inserted between words to make a line of printed text a desired length