(physics, chemistry) A plate or tray in a distillation column that produces the best possible difference between the liquid and vapour phases in equilibrium with it; the equivalent concept in a fractionating column packed with beads or rings

Alternative spelling of bitplane

A plane located halfway between the suprasternal notch and the upper border of the symphysis pubis; this indicates the margin of the transpyloric plane, which in most cases cuts through the pylorus, the tips of the ninth costal cartilages and the lower border of the first lumbar vertebra.

(video games, of an online game) Requiring payment from the player. / (by extension, politics, of a politician or a party) Accepting donations in exchange for favors; corrupt.

(Christianity) A dramatic depiction of the story of the birth of Jesus Christ, commonly performed by children in churches and in Christian schools during the Christmas season.

(nautical) A plate (usually metal) attached horizontally near the top of the lower mast of a square rigged ship in order to secure the topmast. Rigging runs both upwards (topmast rigging) and downwards (futtock shrouds) to maintain stability.

Alternative spelling of extraplanetary

A comprehensive document that sets out an overall strategy; the strategy itself. / (architecture) A small-scale graphic outline that shows all the major elements of a project.

A light, propeller-driven aircraft, with a high wing, designed to land on, and take off from grass airstrips or rough ground

One feels most comfortable at home.