apex

views updated

a·pex / ˈāpeks/ • n. (pl. a·pex·es or a·pi·ces / ˈāpəˌsēz; ˈapə-/ ) the top or highest part of something, esp. one forming a point: the apex of the roof fig. the apex of his career. ∎  Geom. the highest point in a plane or solid figure, relative to a base line or plane. ∎  Bot. the growing point of a shoot. ∎  the highest level of a hierarchy, organization, or other power structure regarded as a triangle or pyramid. • v. [intr.] reach a high point or climax.

apex

views updated

apex. Top of a cone, gable, obelisk, pediment, or pyramid. The saddle- or apex-stone is the topmost stone at the apex of a gable or pediment.

Apex

views updated

A·pex / ˈāpeks/ • n. [usu. as adj.] a system of reduced fares for scheduled airline flights and railroad journeys that must be booked and paid for before a certain period in advance of departure: Apex fares.

apex

views updated

apex (ay-peks) n. the tip or summit of an organ; for example the heart or lung. The apex of a tooth is the tip of the root. See also apical.

apex

views updated

apex The first-formed end of a shell, which is usually pointed. The term is most commonly applied to gastropod (Gastropoda) shells.

APEX

views updated

APEX (ˈeɪpɛks) Advance-Purchase Excursion (reduced airline or rail fare)
• Association of Professional, Executive, Clerical, and Computer Staff (now amalgamated with GMB)

apex

views updated

apex The distal part of a leaf, shoot, or root.

apex

views updated

apex (pl. apices). XVII. — L. apex, apic-,.
Hence apical XIX.