Valve ovate-lanceolate to lanceolate; apices obtuse, not produced.
The itching is intense, and in consequence their apices are excoriated.
The Caudal Appendages exist as two very minute plates, with a few bristles at their apices.
The palpi are small and narrow, with long bristles at their apices.
This phenomena of primitive rocks forming the apices of mountains may be explained differently.
As many as a dozen small ulcers were seen at the apices of the enlarged follicles.
The orbits have a sort of heart-shape, their apices being turned forwards, and their more convex sides inwards.
The elaters are never fusiform, the apices always abrupt in their acumination, and the sculpture irregular and uneven.
The two apices differ very nearly 180° in right ascension and about 120° in declination.
The teeth are two on each side of the mandible, with their apices directed forwards.
c.1600, from Latin apex "summit, peak, tip, top, extreme end;" probably related to apere "to fasten, fix," hence "the tip of anything" (one of the meanings in Latin was "small rod at the top of the flamen's cap"), from PIE *ap- "to take, reach." Proper plural is apices.
apex a·pex (ā'pěks)
n. pl. a·pex·es or a·pi·ces (ā'pĭ-sēz', āp'ĭ-)
The pointed end of a conical or pyramidal structure.