Answer: Is there a story or something?
Answer:
Musical
relating to music
Radical
a group of atoms behaving as a unit in a number of compounds.
Technical
of, involving, or concerned with applied and industrial sciences
Allusion is a figure of speech, in which one refers covertly or indirectly to an object or circumstance from an external context. For example, you might say to one of your guy friends, "Don't act like Romeo in front of her." that would mean you are referencing to Shakespeare's "Romeo and Juliet."