Sulphonal
Produced by combining mercaptan and acetone; employed as a hypnotic.

sulphuric ether
Ethyl ether; formerly called Naphtha vitrioli (naphtha of vitriol).

sumac (sumach)
Shrubs or small trees of the genus Rhus, having compound leaves,
clusters of small greenish flowers, and usually red, hairy fruit. Some
species, such as the poison ivy and poison oak, cause an acute itching
rash on contact.

suppuration
Formation or discharge of pus. Also called pyesis, pyopoiesis, pyosis.

suprarenal
Located above the kidney; a suprarenal part, especially an adrenal
gland.

sweet william
Annual, biennial, or perennial herb (Dianthus barbatus), native to
Eurasia, widely cultivated as an ornamental for its flat-topped dense
clusters of varicolored flowers.

synechia
Adhesions between the iris and the lens or cornea caused by trauma or
eye surgery or as a complication of glaucoma or cataracts; may cause
blindness

terebenthene
Oil of turpentine.

terebinth
Mediterranean tree (Pistacia terebinthus), a source of tanning material
and turpentine.

tetter
Skin diseases (eczema, psoriasis, herpes) that cause eruptions and
itching.

thrall
Slave or serf, who is held in bondage. One intellectually or morally
enslaved.

thrush
A contagious childhood disease caused by a fungus, Candida albicans.
Causes small whitish eruptions on the mouth, throat, and tongue, and
usually accompanied by fever, colic, and diarrhea.

thuja (arborvitae)
A North American or east Asian evergreen tree or shrub of the genus
Thuja, having flattened branchlets with opposite, scale-like leaves and
small cones; used as ornamentals and timber. A similar plant of the
genus Platycladus or Thujopsis.

thymol
White, crystalline, aromatic compound, C10H14O, derived from thyme oil
and other oils or made synthetically and used as an antiseptic, a
fungicide, and a preservative.

tolu (balsam of tolu, tolu balsam)
Aromatic yellowish brown balsam from the tolu balsam tree used in cough
syrups.

tormentil (Potentilla erecta)
Plant of northern Europe found in clearings and meadows. The root has
been used to stop bleeding, for food in times of need and to dye leather
red.

torpid
Lacking the power of motion or feeling.

tragacanth
Thorny shrubs of the genus Astragalus, especially A. gummifer, of the
Middle East, yielding a gum used in pharmacy, adhesives, and t