(astronomy) Any secondary body in the Solar system that is geologically differentiated or in hydrostatic equilibrium and thus has a planet-like geology: a planet, dwarf planet, or the larger moons and asteroids.

(category theory) An object that is both an initial and terminal object. / (object-oriented programming) An object that does nothing and is used instead of using a null.

An anti-expressionist artistic movement of the first half of the twentieth century that espoused direct, unadorned, matter-of-fact aesthetics.

(category theory) Given a category C, any object X ∈ C on which morphisms are defined corresponding to the group theoretic concepts of a binary operation (called multiplication), identity and inverse, such that multiplication is associative and properties are satisfied that correspond to the existence of inverse elements and the identity element.

plural of group object

plural of mock object

(object-oriented programming) An object that mimics the behavior of a real object in a controlled way, often used as part of unit testing.

(grammar) In some languages, e.g. in Finnish, an object that indicates incomplete action, as opposed to total object that indicates completed action.

(grammar) In some languages, e.g. in Finnish, an object that indicates completed action, as opposed to partial object that indicates incomplete action.

plural of objective synonym