(chemistry) A form of isomerism in which, in one isomer two atoms or groups are on the same side of the plane of a double bond or ring, whereas in the other isomer they are on opposite sides; these are cis- and trans- isomers, respectively.

(astronomy) Any natural object (usually a minor planet (asteroid) or a hypothetical planet) in the Solar System with all or most of its orbit outside the orbit of planet Neptune

An unsaturated fatty acid in which one or more of the double bonds has the trans orientation instead of the usual cis orientation.

A major language family spoken in large parts of New Guinea.

plural of trans-Neptunian object

An area along both sides of the Shaksgam River which is de facto administered by China as part of Kashgar prefecture, Xinjiang, but which was claimed by Pakistan until 1963, and which is claimed by India (as part of Ladakh).

(astrodynamics) an orbital burn (rocket firing) used to change orbit from local orbit, to a Mars transfer orbit (a Solar orbit that will intercept the planet Mars).

plural of cis-trans isomer

Indicates that the speaker is a trans woman.

Indicates that the speaker is a trans man.