One of a number of lines or
parts diverging from a common point or center, like the radii of a
circle; as, a star of six rays.
A radiating part of a flower
or plant; the marginal florets of a compound flower, as an aster or a
sunflower; one of the pedicels of an umbel or other circular flower
cluster; radius. See Radius.
One
of the radiating spines, or cartilages, supporting the fins of
fishes.
A line
of light or heat proceeding from a radiant or reflecting point; a
single element of light or heat propagated continuously; as, a solar
ray; a polarized ray.
Sight; perception; vision; -- from an old
theory of vision, that sight was something which proceeded from the
eye to the object seen.
One of a system of diverging
lines passing through a point, and regarded as extending indefinitely
in both directions. See Half-ray.