CHALAZA

noun (plural ~e or -zas) Etymology: New Latin, from Greek, hailstone Date: circa 1704 either of two spiral bands in the white of a bird's egg that extend from the yolk and attach to opposite ends of the lining membrane, the basal part of a plant ovule where the nucellus is fused to the surrounding integument and to which the funiculus is usually attached, ~l adjective