Ray
01
a flat-bodied marine cartilaginous fish with eyes on the upper surface, swimming primarily using large, wing-like pectoral fins
例
The diver spotted a manta ray gliding over the reef.
02
a straight line that starts at a point and extends infinitely in one direction
例
The geometry teacher drew a ray from point A through point B.
03
a column of light, such as that emitted from a beacon or focused source
例
A ray of sunlight streamed through the window.
04
a single branch of an umbel or an umbrella-shaped flower cluster
例
Each ray of the carrot flower bears several small blossoms.
05
a stiff, segmented bony or cartilaginous structure that supports and extends the fins of a fish
例
Rays in the pectoral fin help the fish maneuver.
06
the syllable used in solmization to name the second note of a major scale
例
In the C major scale, the note D is sung as " ray. "
to ray
01
to expose something to radiation
例
The lab rayed the samples to test their durability.
02
to extend, spread, or project outward from a center or inward toward a center
例
The tree branches rayed symmetrically from the trunk.
03
to emit energy, light, or other rays
例
Certain minerals rayed fluorescence under ultraviolet light.
