bougie

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A slender, flexible, cylindrical instrument that is inserted into a bodily canal, such as the urethra, to dilate, examine, or medicate.
• noun A wax candle.

from The Century Dictionary.

• noun A wax candle or waxlight.
• noun A slender cylinder, smooth and flexible, used to dilate or open the rectum, urethra, or esophagus, in cases of stricture or other diseases of those parts.
• noun A pencil of paraffin or other material which melts at the temperature of the body, with which some medicinal substance has been incorporated: employed for local medication of the urethra, uterus, or other canal into which it is introduced, the melting of the bougie liberating the drug.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Surg.) A long, flexible instrument, that is introduced into the urethra, esophagus, etc., to remove obstructions, or for the other purposes. It was originally made of waxed linen rolled into cylindrical form.
• noun (Pharm.) A long slender rod consisting of gelatin or some other substance that melts at the temperature of the body. It is impregnated with medicine, and designed for introduction into urethra, etc.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun medicine A tapered cylindrical instrument for introducing an object into a tubular anatomical structure, or to dilate such a structure, as with an esophageal bougie.
• adjective slang, sometimes pejorative Acting as if one is of a higher social status than one is; suspicions regarding true roots and background are implied.