Water Is Two Parts This, One Part Oxygen

This page is the CodyCross answer for the clue below from Apothecary, Group 1980, Puzzle 4 (Microbiology).

Question is: Water Is Two Parts This, One Part Oxygen

and the answer is: HYDROGEN

Word Meaning:

HYDROGEN — (uncountable) The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008.

Definitions from Wiktionary.

Water Is Two Parts This, One Part Oxygen - Apothecary CodyCross Answers | CodyCross Solutions