plural of space request

An opening made by the pupil in the eye.

(neuroanatomy) The space between the arachnoid mater and the pia mater that surrounds the brain and spinal cord, through which the cerebrospinal fluid circulates and major blood vessels pass, and across which extend delicate trabeculae of connective tissue.

plural of waste of space

An utterly worthless person, one unworthy of the space which they occupy.

(transitive, intransitive) To format (a document) so that every other line is left blank, leaving sufficient whitespace for annotation (e.g. a teacher's corrections).

(anatomy) The space in the wrist bounded by the hamate, capitate, triquetral and lunate bones.

A parking space reserved for handicapped people.

(control engineering) A mathematical model of a physical system as a set of input, output and state variables related by first-order differential equations.

A manifold or topological space X on which G acts by symmetry in a transitive way.