1.Definition: (mathematics) a straight line extending from a point

Category: General

2.Definition: a branch of an umbel or an umbelliform inflorescence

Category: Plants

3.Definition: a column of light (as from a beacon)

Related Noun(s):beam, irradiation, shaft

Category: General

4.Definition: a group of nearly parallel lines of electromagnetic radiation

Related Noun(s):beam

Category: General

5.Definition: any of the stiff bony spines in the fin of a fish

Category: Animals

6.Definition: cartilaginous fishes having horizontally flattened bodies and enlarged winglike pectoral fins with gills on the underside; most swim by moving the pectoral fins

Category: Animals

7.Definition: the syllable naming the second (supertonic) note of any major scale in solmization

Related Noun(s):re

Category: General