New Moon: The moon is not visible in the sky. Except during a solar eclipse, Waxing Crescent: The moon is less than one-half illuminated by the sun but less than one quarter illuminated. Occurs when the moon's illumination is increasing, First Quarter: The moon is one-half illuminated by the sun. Occurs when the moon's illumination is increasing, Waxing Gibbous: The moon is more than one-half illuminated by the sun but not completely illuminated. Occurs when the moon's illumination is increasing, Full Moon
Preservationist is generally understood to mean historic preservationist: one who advocates to preserve architecturally or historically significant buildings, structures, objects or sites from demolition or degradation.
Meaning: A process that saves organic substances from decay. Classified under: Nouns denoting natural processes. Hypernyms (preservation is a kind of...): biological process; organic process (a process occurring in living organisms) Hyponyms (each of the following is a kind of preservation): environmentalism (the activity of protecting the environment from pollution or destruction) conservation (the preservation and careful management of the environment and of natural resources)