ruche
Ruffle or pleat of lace, muslin, or other fine fabric used to trim
women's garments.

rumex Crispus (chrysophanic acid)
Yellow crystalline substance found in the root of yellow dock (Rumex
crispus).

rush
Stiff marsh plants of the genus Juncus, having pliant hollow or pithy
stems and small flowers with scale-like perianths (outer envelope of a
flower,).

sago
Powdery starch from the trunks of sago palms; used in Asia as a food
thickener and textile stiffener.

sal-ammoniac
ammonium chloride; white crystalline volatile salt NH4Cl, used in dry
cells and as an expectorant called.

saleratus
Sodium or potassium bicarbonate used as a leavening agent; baking soda.

salicylate
Salt or ester of salicylic acid.

salicylic acid
White crystalline acid, C6H4(OH)(COOH), used to make aspirin and to
treat skin conditions such as eczema.

salol
White crystalline powder, C13H10O3, derived from salicylic acid and used
in plastics, suntan oils, analgesics and antipyretics. Was a trademark.

saltpetre (potassium nitrate, saltpeter, niter, nitre)
(KNO3) used especially as a fertilizer, explosive and a diuretic.

salt rheum
Popular name in the United States, for skin eruptions, such as eczema.
Eczema; inflammatory skin disease, indicated by redness and itching,
eruption of small vesicles, and discharge of a watery exudation, which
often dries up, leaving the skin covered with crusts;--called also
tetter, and milk crust.

sanguinaria
Rhizome (horizontal, underground stem) and roots of the bloodroot
(Sanguinaria canadensis) used formerly as an expectorant and emetic.

sedulous
Persevering and constant in effort or application; assiduous.

senna
Plants of the genus Cassia, having showy, nearly regular, usually yellow
flowers. Dried leaves of Cassia angustifolia or C. acutifolia, used as a
cathartic.

santonin
Colorless crystalline compound, C15H18O3, wormwood, especially
santonica; used to expel or destroy parasitic intestinal worms.

sarsaparilla
Tropical American plants, genus Smilax, with fragrant roots used as a
flavoring. Dried roots of any of these plants. Sweet soft drink flavored
with these roots.

savin
Evergreen Eurasian shrub (Juniperus sabina) with brownish-blue
seed-bearing cones and young shoots that yield an oil formerly used
medicinally.

scrofula (struma)
A form of tuberculosis affecting the lymph nodes, especi