SURGEON n.
s of chætodont fishes of the family Teuthidæ, or Acanthuridæ, which have one or two sharp lancelike spines on each side of the base of the tail. Called also surgeon fish, doctor fish, lancet fish, and sea surgeon. Surgeon apothecary, one who unites the practice of surgery with that of the apothecary. Dunglison. -- Sur…
SUSPENSION n.
spend a suit. -- Points of suspension (Mech.), the points, as in the axis or beam of a balance, at which the weights act, or from which they are suspended. -- Suspension bridge, a bridge supported by chains, ropes, or wires, which usually pass over high piers or columns at each end, and are secured in the ground beyo…
SYMBOL n.
ion of an idea; anything which suggests an idea or quality, or another thing, as by resemblance or by convention; an emblem; a representation; a type; a figure; as, the lion is the symbol of courage; the lamb is the symbol of meekness or patience. A symbol is a sign included in the idea which it represents, e.g., an ac…
TEMPERING n.
of color that indicates the degree of temper in tempering steel, as pale straw yellow for lancets, razors, and tools for metal; dark straw yellow for penknives, screw taps, etc.; brown yellow for axes, chisels, and plane irons; yellow tinged with purple for table knives and shears; purple for swords and watch springs;…
THISTLE n.
rmerly considered an antidote to the bite of venomous creatures. -- Bull thistle, Cnicus lanceolatus, the common large thistle of neglected pastures. -- Canada thistle, Cnicus arvensis, a native of Europe, but introduced into the United States from Canada. -- Cotton thistle, Onopordon Acanthium. -- Fuller's thistle…