fluctuation. noun change, shift, swing, variation, instability, alteration, wavering, oscillation, alternation, vacillation, unsteadiness, inconstancy Don't worry about tiny fluctuations in your weight.luctuation. noun change, shift, swing, variation, instability, alteration, wavering, oscillation, alternation, vacillation, unsteadiness, inconstancy Don't worry about tiny fluctuations in your weight.
Jim Starlin's Thanos first appeared in 1973; his 40th anniversary may be celebrated on set of The Avengers 2. (Marvel) http://herocomplex.latimes.com/movies/avengers-spoiler-special-mystery-villains-creator-speaks-out/attachment/thanos2_1336007796/.
Nitrous oxide, N 2 O, is a colourless, almost odourless gas, that was first discovered in 1772 by the English scientist and clergyman Joseph Priestley (who was also famous for being the first to isolate other important gases such as oxygen, carbon monoxide, carbon dioxide, ammonia, and sulfur dioxide).