RATIONALIZE

Ra″tion‐al‐ize (răsh″ŭn‐al‐īz), v. t. 1. 1. To make rational; also, to convert to rationalism.
2. 2. To interpret in the manner of a rationalist.
3. 3. To form a rational conception of.
4. 4. (Alg.) To render rational; to free from radical signs or quantities.