Question

fill in the blank question
perhaps the most insidious illicit drug for contemporary society is the amphetamine known as □ methamphetamine, a synthetic stimulant that causes a very strong feeling of euphoria.

Explanation:

The blank is likely to be filled with "crystal" as the full term is "crystal methamphetamine" (also known as meth or ice), which is a well - known synthetic stimulant with strong euphoric effects.

Answer:

crystal