nomogram
noun
[ ˈnɒməɡram ]
• a diagram representing the relations between three or more variable quantities by means of a number of scales, so arranged that the value of one variable can be found by a simple geometrical construction, e.g. by drawing a straight line intersecting the other scales at the appropriate values.
• "in calculating dosage we encourage the use of a nomogram that takes account of age, sex, renal function, and body weight"
Origin:
early 20th century: from Greek nomos ‘law’ + -gram1.
