Normal

a.	1.
	1.	According to an established norm, rule, or principle; conformed to a type, standard, or regular form; performing the proper functions; not abnormal; regular; natural; analogical. Deviations from the normal type. - Hallam.
	2.	(Geom.) According to a square or rule; perpendicular; forming a right angle; as, a line normal to the base. Specifically: Of or pertaining to a normal.
	3.	(Chem.) Standard; original; exact; typical. Normal equations (Method of Least Squares) a set of equations of the first degree equal in number to the number of unknown quantities, and derived from the observations by a specified process. The solution of the normal equations gives the most probable values of the unknown quantities. Normal group (Geol.) a group of rocks taken as a standard. Normal place (Astron.) the apparent place in the heavens of a planet or comet at a specified time, the place having been determined by a considerable number of observations, extending perhaps over many days, and so combined that the accidental errors of observation have largely balanced each other. - Lyell. Normal school a school whose methods of instruction are to serve as a model for imitation; an institution for the training of teachers.
n.	1.	(Geom.) Any perpendicular.
	2.	(Geom.) A straight line or plane drawn from any point of a curve or surface so as to be perpendicular to the curve or surface at that point.

Noun	1.	normal - something regarded as a normative example; "the convention of not naming the main character"; "violence is the rule not the exception"; "his formula for impressing visitors" Synonyms: convention, rule, pattern, formula
Adj.	1.	normal - conforming with or constituting a norm or standard or level or type or social norm; not abnormal; "serve wine at normal room temperature"; "normal diplomatic relations"; "normal working hours"; "normal word order"; "normal curiosity"; "the normal course of events" Antonyms: abnormal - not normal; not typical or usual or regular or conforming to a norm; "abnormal powers of concentration"; "abnormal amounts of rain"; "abnormal circumstances"; "an abnormal interest in food"
	2.	normal - in accordance with scientific laws Antonyms: paranormal - not in accordance with scientific laws; "what seemed to be paranormal manifestations"
	3.	normal - being approximately average or within certain limits in e.g. intelligence and development; "a perfectly normal child"; "of normal intelligence"; "the most normal person I've ever met" Antonyms: abnormal - departing from the normal in e.g. intelligence and development; "they were heartbroken when they learned their child was abnormal"; "an abnormal personality"
	4.	normal - forming a right angle

academe, academia, accepted, according to Hoyle, air line, all there, alma mater, appropriate, arranged, average, axis, azimuth circle, balance, balanced, banal, beeline, besetting, bourgeois, businesslike, center, central, chord, clearheaded, clearminded, college, college of engineering, common, commonplace, community college, compos mentis, condign, conformable, conformist, consuetudinary, conventional, correct, current, decent, decorous, degree-granting institution, diagonal, diameter, direct line, directrix, distinctive, distinguishing, dominant, due, edge, epidemic, established, everyday, exemplary, familiar, fit, fitting, formal, four-year college, garden, garden-variety, general, generality, generally accepted, golden mean, good, graduate school, great-circle course, habitual, happy medium, harmonious, healthy-minded, in hand, institute of technology, intermediary, intermediate, ivied halls, journalism school, junior college, juste-milieu, kosher, law school, lucid, mean, medial, median, medical school, mediocre, mediocrity, medium, mentally sound, methodical, middle, middle course, middle ground, middle point, middle position, middle state, middle-class, middle-of-the-road, middling, midpoint, moderate, multiversity, naturalistic, naturistic, nice, no great shakes, norm, normal school, normative, obtaining, of sound mind, ordered, orderly, orthodiagonal, orthodox, orthogonal, orthometric, pandemic, par, perpendicular, plastic, plumb, popular, postgraduate school, predominant, predominating, prescribed, prescriptive, prevailing, prevalent, proper, quintessential, radius, radius vector, rampant, rational, realistic, reasonable, received, rectangular, regnant, regulation, reigning, rife, right, right and proper, right angle, right line, right-angle, right-angled, right-angular, righteous, rightful, routine, rule, ruling, run, run-of-mine, run-of-the-mill, running, sample, sane, sane-minded, school of communications, school of education, secant, seemly, segment, sensible, set, shortcut, side, sound-minded, stable, standard, steady, stereotyped, stock, straight, straight course, straight line, straight stretch, straightaway, streamline, suburban, suitable, symmetrical, systematic, tangent, time-honored, together, traditional, transversal, true to form, true to type, two-year college, typal, typic, unexceptional, universal, university, university college, unnoteworthy, unremarkable, unspectacular, upright, varsity, vector, vertical, vertical circle, via media, well-ordered, well-regulated, wholesome, widespread, wonted