cretonne
  Heavy unglazed cotton, linen, or rayon fabric, colorfully printed and
  used for draperies and slipcovers.

croton oil
  Brownish-yellow, foul-smelling oil from the seeds of a tropical Asian
  shrub or small tree (Croton tiglium); formerly used as a drastic
  purgative and counterirritant.  Its use was discontinued because of its
  toxicity.

croup
  Condition of the larynx, especially in infants and children, causing
  respiratory difficulty and a hoarse, brassy cough.

Culver’s root
  Perennial herb (Veronicastrum virginicum) native to eastern North
  America; the root was formerly used as a cathartic and an emetic.

cupping
  Therapeutic procedure, no longer in use; an evacuated glass cup is
  applied to the skin to draw blood to the surface.

Cuprum
  Copper.

Curacao
  Flavored with sour orange peel.  Popular island resort in the Netherlands
  Antilles.

cystitis
  Inflammation of the urinary bladder.

damask
  Rich patterned fabric of cotton, linen, silk, or wool.  Fine, twilled
  table linen.

deadly night-shade (bittersweet, bittersweet nightshade, climbing
nightshade, poisonous nightshade, woody nightshade, Solanum dulcamara)
  Perennial Eurasian herb with reddish bell-shaped flowers and shining
  black berries; extensively grown in United States; roots and leaves
  yield atropine (belladonna, Atropa belladonna).

decollete
  Cut low at the neckline.  Wearing a garment that is low-cut or strapless.

demi-monde
  Class of women kept by wealthy lovers or protectors; prostitutes; group
  whose respectability is dubious or whose success is marginal.

demulcent
  Soothing, usually mucilaginous or oily substance, such as glycerin or
  lanolin, used to relieve pain of irritated mucous membranes.

diathesis
  Hereditary predisposition to disease, allergy, or other disorder.

digitalis
  Plant of the genus Digitalis, including foxgloves.  Drug prepared from
  the seeds and dried leaves used as a cardiac stimulant.

dilatory
  Delay or postpone.

discomfit
  Make uneasy or perplexed; disconcert; embarrass; thwart the plans of;
  frustrate.

dry cupping
  See cupping.

dysmenorrhea
  Painful menstruation.

effusion
  Seeping of serous, purulent, or bloody fluid into a body cavity or
  tissue.  The effused fluid.

eiderdown (eider down)
  Down of the eider duck, used to stuff quilts and pillows.  Quilt stuffed
  with the down of the eider duck.

empyema
  Pus in a body cavity, especially the pleural cavity.

ennui
  Listlessness, dissatisfaction, lack of interest; boredom: 

Epsom salts
  Hydrated magnesium sulfate, MgSO4.7H2O, used as a cathartic and to
  reduce inflammation.