|a scrap or morsel of food left at a meal.|
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|aerology (â-rŏl'ə-jē) Pronunciation Key
The branch of meteorology that studies the total vertical extent of the Earth's atmosphere as opposed to the atmosphere near the Earth's surface only. The most commonly studied atmospheric factors in aerology are air temperature, atmospheric pressure, humidity, wind, and ozone levels. Radioactivity and some aspects of long-wave radiation are also studied.