photosynthesis

The light reaction of photosynthesis. The light reaction occurs in two photosystems (units of …© Merriam-Webster Inc.
Take a 3-minute break and test your skills!
July 02, 2015
apprehension Hear it
comprehension or the fear of future evil
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears