noun

1. A line or vector that is perpendicular to another line, surface, or plane.

2. A person who is normal, who fits into mainstream society, as opposed to those who live alternative lifestyles.

3. The usual state.

   “Heavy workload is the new normal.”

adjective

1. According to norms or rules or to a regular pattern.

   “Organize the data into third normal form.”

2. Usual, healthy; not sick or ill or unlike oneself.

   “John is feeling normal again.”

3. (of a school) teaching teachers how to teach (to certain norms)

   “My grandmother attended Mankato State Normal School.”

Synonyms: hale, healthy, well, orthogonal, perpendicular, right angles, Gaussian, standard normal