(chemistry) DHO, a heavier form of water, containing a protium and a deuterium type of hydrogen atoms.

plural of Asian Semi-longhair

plural of British Semi-Longhair

Paper with horizontal and vertical rules, the one collection spaced according to a logarithmic scale and the other evenly.

(of a real-valued function on a topological space) Such that, for each fixed number, the subspace of points whose images are at least that number is closed.

plural of Semi-Open Game

A type of chess opening, in which White plays 1.e4 (moves their king's pawn to the fourth rank with their first move) and Black breaks symmetry by replying with a move other than 1...e5.

Alternative letter-case form of Semi-Open Game

plural of semi-open game

(of a real-valued function on a topological space) Such that, for each fixed number, the subspace of points whose images are at most that number is closed.