No-Effect Substance Used in Drug Trial as Control
This page is the CodyCross answer for the clue below from Prehistory, Group 1253, Puzzle 1 (Basilosaurus).
Question is: No-Effect Substance Used in Drug Trial as Control
and the answer is: PLACEBO
Word Meaning:
PLACEBO — (medicine) A dummy medicine containing no active ingredients; an inert treatment.
Definitions from Wiktionary.