similarity - Wiktionary, the free dictionary (original) (raw)

From Wiktionary, the free dictionary

From French similarité. Morphologically similar +‎ -ity

similarity (countable and uncountable, plural similarities)

  1. Closeness of appearance to something else.
  2. (philosophy) The relation of sharing properties.
  3. (geometry) A transformation (of a Euclidean space) that preserves angles and the ratios of distances
  4. (mathematics, linear algebra) The property of two matrices being similar.

closeness of appearance — see also similitude