ray

nouns

a column of light (as from a beacon)
beam, beam of light, irradiation, light beam, ray, ray of light, shaft, shaft of light
a branch of an umbel or an umbelliform inflorescence
ray
is a type of (narrower)
a small stalk bearing a single flower of an inflorescence; an ultimate division of a common peduncle
pedicel, pedicle
(mathematics) a straight line extending from a point
ray
domain category
a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement
math, mathematics, maths
is a type of (narrower)
a straight line segment whose length is magnitude and whose orientation in space is direction
vector
a group of nearly parallel lines of electromagnetic radiation
beam, electron beam, ray
the syllable naming the second (supertonic) note of any major scale in solmization
ray, re
any of the stiff bony spines in the fin of a fish
ray
is a part of
organ of locomotion and balance in fishes and some other aquatic animals
fin
is a type of (narrower)
a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin
spine
cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins
ray
is a type of (narrower)
any of numerous fishes of the class Chondrichthyes characterized by a cartilaginous skeleton and placoid scales: sharks; rays; skates
elasmobranch, selachian

verbs

emit as rays
"That tower rays a laser beam for miles across the sky"
ray
is a type of (narrower)
give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.
"The ozone layer blocks some harmful rays which the sun emits"
emit, give off, give out
extend or spread outward from a center or focus or inward towards a center
"spokes radiate from the hub of the wheel"; "This plants radiate spines in all directions"
radiate, ray
expose to radiation
"irradiate food"
irradiate, ray