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The tip, top, point, or angular summit of anything; as, the apex of a mountain, spire, or cone; the apex, or tip, of a leaf.

Having the style spring from the base, instead of from the apex, as is the case in certain ovaries.

Developing from below towards the apex, or from the circumference towards the center; centripetal; -- said of certain inflorescence.

One of the small pedestals, for statues or other ornaments, placed on the apex and at the basal angles of a pediment. Acroteria are also sometimes placed upon the gables in Gothic architecture. J. H. Parker.

le inverted at an early period in its development, so that the chalaza is as the apparent apex; -- opposed to orthotropous. Gray.

At or belonging to an apex, tip, or summit. Gray.

See Apex.

Situated at, or near, the apex; apical.

ver whose two arms form a right angle, or nearly a right angle, having its fulcrum at the apex of the angle. It is used in bell pulls and in changing the direction of bell wires at angles of rooms, etc., and also in machinery.

oduced by passing a galvanic current through two carbon points kept constantly with their apexes neary in contact. -- Carbon point (Elec.), a small cylinder or bit of gas carbon moved forward by clockwork so that, as it is burned away by the electric current, it shall contantly maintain its proper relation to the oppo…

; thus, a chevron couché is one which emerges from one side of the escutcheon and has its apex on the opposite side, or at the fess point.

The apex of the last abdominal segment of an insect.

arch; -- applied generally to about one third of the curve, but in a pointed arch to the apex only.

Decapitated; worn or cast off in the process of growth, as the apex of certain univalve shells.

Reclining on the ground, as if too weak to stand, and tending to rise at the summit or apex; as, a decumbent stem. Gray.

ral shell the whorls of which turn from left right, or like the hands of a watch when the apex of the spire is toward the eye of the observer.

Europe and Asia. It is remarkable fora pair of tusks directed downward from the decurved apex of the lower jaw.

re equal. -- Equilateral shell (Zoöl.), one in which a transverse line drawn through the apex of the umbo bisects the valve, or divides it into two equal and symmetrical parts. -- Mutually equilateral, applied to two figures, when every side of the one has its equal among the sides of the other.

Running or extending out; as, an excurrent midrib, one which projects beyond the apex of a leaf; an excurrent steam or trunk, one which continues to the top.

f marine gastropod mollusks, having a conical or limpetlike shell, with an opening at the apex; -- called also keyhole limpet.