Source : Webster's Revised Unabridged Dictionary (1913)

Regular \Reg"u*lar\ (-l?r), a. [L. regularis, fr. regula a rule,
   fr. regere to guide, to rule: cf. F. r['e]gulier. See
   {Rule}.]
   1. Conformed to a rule; agreeable to an established rule,
      law, principle, or type, or to established customary
      forms; normal; symmetrical; as, a regular verse in poetry;
      a regular piece of music; a regular verb; regular practice
      of law or medicine; a regular building.

   2. Governed by rule or rules; steady or uniform in course,
      practice, or occurence; not subject to unexplained or
      irrational variation; returning at stated intervals;
      steadily pursued; orderlly; methodical; as, the regular
      succession of day and night; regular habits.

   3. Constituted, selected, or conducted in conformity with
      established usages, rules, or discipline; duly authorized;
      permanently organized; as, a regular meeting; a regular
      physican; a regular nomination; regular troops.

   4. Belonging to a monastic order or community; as, regular
      clergy, in distinction dfrom the secular clergy.

   5. Thorough; complete; unmitigated; as, a regular humbug.
      [Colloq.]

   6. (Bot. & Zo["o]l.) Having all the parts of the same kind
      alike in size and shape; as, a regular flower; a regular
      sea urchin.

   7. (Crystallog.) Same as {Isometric}.

   {Regular polygon} (Geom.), a plane polygon which is both
      equilateral and equiangular.

   {Regular polyhedron} (Geom.), a polyhedron whose faces are
      equal regular polygons. There are five regular
      polyhedrons, -- the tetrahedron, the hexahedron, or cube,
      the octahedron, the dodecahedron, and the icosahedron.

   {Regular sales} (Stock Exchange), sales of stock deliverable
      on the day after the transaction.

   {Regular troops}, troops of a standing or permanent army; --
      opposed to militia.

Regular \Reg"u*lar\ (r[e^]g"[-u]*l[~e]r), n. [LL. regularis: cf.
   F. r['e]gulier. See {Regular}, a.]
   1. (R. C. Ch.) A member of any religious order or community
      who has taken the vows of poverty, chastity, and
      obedience, and who has been solemnly recognized by the
      church. --Bp. Fitzpatrick.

   2. (Mil.) A soldier belonging to a permanent or standing
      army; -- chiefly used in the plural.

Source : WordNet®

regular
     adj 1: in accordance with fixed order or procedure or principle;
            "his regular calls on his customers"; "regular meals";
            "regular duties" [ant: {irregular}]
     2: often used as intensifiers; "a regular morass of details";
        "a regular nincompoop"; "he's a veritable swine" [syn: {regular(a)},
         {veritable(a)}]
     3: conforming to a standard or pattern; "following the regular
        procedure of the legislature"; "a regular electrical
        outlet"
     4: (of solids) having clear dimensions that can be measured;
        volume can be determined with a suitable geometric formula
        [ant: {irregular}]
     5: regularly scheduled for fixed times; "at a regular meeting
        of the PTA"; "regular bus departures"
     6: in accord with regular practice or procedure; "took his
        regular morning walk"; "her regular bedtime"
     7: occurring at fixed intervals; "a regular beat"; "the even
        rhythm of his breathing" [syn: {even}]
     8: relating to a person who does something regularly; "a
        regular customer"; "a steady drinker" [syn: {steady}]
     9: (used of the military) belonging to or engaged in by
        legitimate army forces; "the regular army" [ant: {irregular}]
     10: not constipated [syn: {unconstipated}] [ant: {constipated}]
     11: symmetrically arranged; "even features"; "regular features";
         "a regular polygon" [syn: {even}]
     12: not deviating from what is normal; "her regular bedtime"
     13: officially full-time; "regular students"

regular
     n 1: a regular patron; "an habitue of the racetrack"; "a bum who
          is a Central Park fixture" [syn: {habitue}, {fixture}]
     2: a soldier in the regular army
     3: a dependable follower (especially in party politics); "he is
        one of the party regulars"
     4: a garment size for persons of average height and weight