The middle portion of something; the part well away from the edges.
(geometry) The point on a line that is midway between the ends.
(geometry) The point in the interior of any figure of any number of dimensions that has as its coordinates the arithmetic mean of the coordinates of all points on the perimeter of the figure (or of all points in the interior for a center of volume).
(group theory) The set, denoted Z(G), of elements of given group G that commute with every element of G.
(architecture) A temporarystructure upon which the materials of a vault or arch are supported in position until the work becomes self-supporting.
(engineering) One of the two conicalsteelpins in a lathe, etc., upon which the work is held, and about which it revolves.
(engineering) A conical recess or indentation in the end of a shaft or other work, to receive the point of a center, on which the work can turn, as in a lathe.
“For him, the centrepieces of conversation were aphorisms, epigrams and paradoxes which seemed to trip effortlessly from his honeyed tongue.”
“Glittering snow globes delight children and adults alike, while individual ornaments ranging from three to 12 inches high provide dazzling centrepieces.”
“These will include door swags, holly wreaths and table centrepieces in a selection of colours like gold and silver, as well as in the traditional reds and greens.”