(military) The principal air operations installation (ship-based) from which all aircraft and air warning functions of tactical air operations are controlled. Also called Navy TACC.

(mechanics) The point where a shear force can act without producing any twist in the section. In general not the centroid, but a point through which a force transverse to the axis of a beam section can act and not cause any twisting of the beam section.

Egotistically obsessed with oneself. / Concerned with the self, as opposed to the greater good of one's group, community, tribe, etc.; individualistic.

(rare, dated) The centre of mass.

(mathematics, physics) A point, near, or within a body at which the object's mass can be assumed to be concentrated; it coincides with the centroid for a body of uniform density, and with the centre of gravity in a uniform gravitational field.

US standard spelling of centre of mass.

plural of center fielder

In California, the large valley in the center of the state between the Coast Ranges and the Sierra Nevada.

plural of central angle

plural of century plant