Sim·i·lar·i·ty n.; pl. -ties The quality or state of being similar; likeness; resemblance; as, a similarity of features.
Hardly is there a similarity detected between two or three facts, than men hasten to extend it to all. --Sir W. Hamilton.
n 1: the quality of being similar [ant: dissimilarity]
2: a Getalt principle of organization holding that (other
things being equal) parts of a stimulus field that are
similar to each other tend to be perceived as belonging
together as a unit [syn: law of similarity]