Water and Wastewater Terms Beginning Q

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

quadrant

Any of the 4 more or less equal parts into which something can be divided by 2 real or imaginary lines that intersect each other at right angles. In television inspection of pipes, for example, the picture of the pipe can be divided into fourths (upper-left, lowerleft, upper-right, and lower-right quadrants) to identify the location of observed objects.