Waxy Substance Used by Bees to Make Their Hives
Puzzle 8 of Famous Women in Science Hard Pack
Question is: Waxy Substance Used by Bees to Make Their Hives
and the answer is: PROPOLIS
Word Meaning:
PROPOLIS — An aromatic glue-like substance produced by honeybees from tree resin, waxes, and their own secretions, used in the construction of their hives.
Definitions from Wiktionary.