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GLOSSARY

ACCOMPANY: verb; (1) to go with somebody.
Ex. John is going there too, why don't you accompany him so that he won't

have to go alone.
(2) to occur at the same time

Ex. The weather report said to expect heavy showers accompanied by strong winds.

CASE: noun; an instance or occurrence of something

Ex. Normally hail is about 2.5 cm in diameter or smaller, but in this case it was as
big as an egg.

CELL: noun; a portion of the atmosphere that functions as one unit
Ex. A high pressure cell has covered this area for the last 72 hours.

Ex. Sometimes when you are flying at a high altitude you can see three or four d
ifferent thunderstorm cells at the same time.
CONVERGE: verb; to move toward one point or to come together

Ex. There is a big traffic problem in some of the older cities because the main
highways leading to the city converge in the downtown area.

Ex. The winds converge at the center of the low-pressure area, then rise upward.

CYCLE: noun; a series of regular changes that usually lead back to the same starting point
or condition.

Ex. The circulation cycle is very simple; the air at the surface is heated, it rises, then at
high altitudes it is cooled and sinks back to the surface. When it is at the surface

the cycle starts again.
DISSIPATE: verb; to separate into smaller and smaller parts until it no longer exists.

Ex. The fog will dissipate in about two hours
Ex. This is just a local summer storm; they form, rain, and dissipate, all in about 30
minutes.
FUNNEL: noun; a cone-shaped object, open at the top and bottom, used as a guide when
pouring into a small opening

Ex. He used a funnel when he poured the water into the bottle.

GUST: noun; a sudden, short-time increase in wind speed
Ex: Wind speed is 10 knots with gusts up to 20 knots.

LATERAL: adjective; concerning the side, located at or moving to or away
from the side
Ex. In this aircraft the pilot has good vision to the front, but lateral vision is
limited, and he can't see to the rear at all.