An informal arrangement in which a married couple lives in separate homes while remaining legally married.

(video games, transitive, intransitive, derogatory) To consistently play a video game using only one of the available characters or skill sets.

(video games, derogatory) A player who consistently plays a video game using only one of the available characters or skill sets.

plural of tricky racket

A type of business or endeavor that is not easy; a domain fraught with difficulty.

A region bounded by the vertices at Reno, Nevada, USA; Las Vegas, Nevada, USA; Fresno, California, USA; containing part of the Sierra Nevadas (a mountain range in the Rocky Mountain Cordillera); the triangle falling mostly in the U.S. state of Nevada; where many plane crashes occur and planes disappear.

(historical) A state that is subject to another and has to pay regular tribute to the latter as a token of submission.

(geometry, computer graphics) For a given set P of discrete points in a plane: a triangulation DT(P) such that no point in P is inside the circumcircle of any triangle in DT(P).

(physiology, neuroscience) An area of the medulla oblongata, located in the area postrema, that receives inputs from blood-borne drugs or hormones, and communicates with other structures in the vomiting center to initiate vomiting.

plural of trial-balloon