The Collaborative International Dictionary of English v.0.48:

Dose \Dose\, v. t. [imp. & p. p. Dosed; p. pr. & vb. n.
   dosing.] [Cf. F. doser. See Dose, n.]
   1. To proportion properly (a medicine), with reference to the
      patient or the disease; to form into suitable doses.
      [1913 Webster]

   2. To give doses to; to medicine or physic to; to give
      potions to, constantly and without need.
      [1913 Webster]

            A self-opinioned physician, worse than his
            distemper, who shall dose, and bleed, and kill him,
            "secundum artem."                     -- South
      [1913 Webster]

   3. To give anything nauseous to.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Dose \Dose\ (d[=o]s), n. [F. dose, Gr. do`sis a giving, a dose,
   fr. dido`nai to give; akin to L. dare to give. See Date
   point of time.]
   1. The quantity of medicine given, or prescribed to be taken,
      at one time.
      [1913 Webster]

   2. A sufficient quantity; a portion; as much as one can take,
      or as falls to one to receive.
      [1913 Webster]

   3. Anything unpleasant that one is obliged to take; a
      disagreeable portion thrust upon one; also used
      figuratively, as to give someone a dose of his own
      medicine, i. e. to retaliate in kind.
      [1913 Webster]

            I am for curing the world by gentle alteratives, not
            by violent doses.                     -- W. Irving.
      [1913 Webster]

            I dare undertake that as fulsome a dose as you give
            him, he shall readily take it down.   -- South.
      [1913 Webster]

   4. a quantity of radiation which an object absorbs, or to
      which it is exposed.
      [PJC]

WordNet (r) 3.0 (2006):

dose
    n 1: a measured portion of medicine taken at any one time [syn:
         dose, dosage]
    2: the quantity of an active agent (substance or radiation)
       taken in or absorbed at any one time [syn: dose, dosage]
    3: a communicable infection transmitted by sexual intercourse or
       genital contact [syn: venereal disease, VD, venereal
       infection, social disease, Cupid's itch, Cupid's
       disease, Venus's curse, dose, sexually transmitted
       disease, STD]
    4: street name for lysergic acid diethylamide [syn: acid,
       back breaker, battery-acid, dose, dot, Elvis,
       loony toons, Lucy in the sky with diamonds, pane,
       superman, window pane, Zen]
    v 1: treat with an agent; add (an agent) to; "The ray dosed the
         paint"
    2: administer a drug to; "They drugged the kidnapped tourist"
       [syn: drug, dose]

Moby Thesaurus II by Grady Ward, 1.0:

109 Moby Thesaurus words for "dose":
   French disease, Spanish pox, VD, acquired syphilis, administer,
   amount, anoint, apply, bag, balanitis gangrenosa, bang, batch,
   bestow, booster, booster dose, booster shot, budget, bunch,
   cerebral tabes, chancre, chancroid, chunk, clap, claps,
   climatic bubo, clutch, congenital syphilis,
   constitutional syphilis, count, deal, deck, dispense, dope, dosage,
   dose of clap, dose with, draft, dram, dropping, drug, drug packet,
   embrocate, enforce upon, fifth venereal disease, fix, force,
   force upon, general paresis, give, gob, gonorrhea,
   granuloma inguinale, granuloma venereum, great pox, group,
   hard chancre, heap, hit, hunk, injection, large amount,
   latent syphilis, lay on, locomotor ataxia, lot, mainlining,
   measure, medicate, mess, mete out to, morbus Gallicus,
   narcotic shot, nip, number, oil, overdose, pack,
   paralytic dementia, parcel, paresis, part, popping, portion,
   potion, pox, prescribe, prescribe for, pudendal ulcer, put on,
   put upon, quantity, ration, salve, shot, simple chancre,
   skin-popping, slug, small amount, social disease, soft chancre,
   sum, syph, syphilis, syphilitic meningoencephalitis, tabes,
   tabes dorsales, tertiary syphilis, tropical bubo,
   venereal disease