n. 1 (often foll. by to) a disposition or propensity. 2 (often foll. by for) a liking or affection. 3 a leaning, slope, or slant. 4 the difference of direction of two lines or planes, esp. as measured by the angle between them. 5 the dip of a magnetic needle.
[ ME f. OF inclination or L inclinatio (as INCLINE) ]