Last Name of Albert, a Pioneer of Physics

This page is the CodyCross answer for the clue below from Botanical Garden, Group 1430, Puzzle 3 (Star of Bethlehem).

Question is: Last Name of Albert, a Pioneer of Physics

and the answer is: EINSTEIN

Word Meaning:

EINSTEIN — (photochemistry, dated) One mole of photons, regardless of frequency, as used to measure irradiance.

Definitions from Wiktionary.

Last Name Of Albert, A Pioneer Of Physics - Botanical Garden CodyCross Answers | CodyCross Solutions