Z
zap a small alteration to a computer program.
zona a zone; a girdle; herpes zoster.
zona pellucida membrane around the oocyte.
zonule small zone, belt or girdle. Suspensory ligament attaching the periphery of the lens of the eye to ciliary body.
zoster an inflammatory skin reaction to the herpes virus characterized by a vesicular rash in the area of the distribution of a sensory nerve. Also called shingles.
zygoma a long slender process of the temporal bone. The zygomatic bone that forms the cheek.
zygomatic bone a bone forming the bony cheek and the lateral walls and the floor of the orbit.
zygote the fertilized ovum. The diploid cell derived from the fusion after fertilization of the female and male nuclei, each of which has one set of chromosomes (the haploid).
