13-letter words containing m, a, r, g, e, y
- phrygian mode — an authentic church mode represented on the white keys of a keyboard instrument by an ascending scale from E to E.
- plethysmogram — the recording of a plethysmograph.
- safety margin — something required to ensure safety
- screaming tty — [Unix] A terminal line which spews an infinite number of random characters at the operating system. This can happen if the terminal is either disconnected or connected to a powered-off terminal but still enabled for login; misconfiguration, misimplementation, or simple bad luck can start such a terminal screaming. A screaming tty or two can seriously degrade the performance of a vanilla Unix system; the arriving "characters" are treated as userid/password pairs and tested as such. The Unix password encryption algorithm is designed to be computationally intensive in order to foil brute-force crack attacks, so although none of the logins succeeds; the overhead of rejecting them all can be substantial.
- semilegendary — having some historical basis, but legendary in part
- spurge family — the large plant family Euphorbiaceae, characterized by herbaceous plants, shrubs, and trees having milky juice, simple alternate leaves or no leaves, usually petalless flowers often with showy bracts, and capsular fruit, and including cassava, croton, crown-of-thorns, poinsettia, snow-on-the-mountain, spurge, and the plants that produce castor oil, rubber, and tung oil.
- stalagmometry — measurement of drops of liquid using a staktometer
- syringomyelia — a disease of the spinal cord in which the nerve tissue is replaced by a cavity filled with fluid.
- thremmatology — the science of breeding or propagating animals and plants under domestication.
- ugly american — An Ugly American is an American who travels to a foreign country and gives the United States a bad reputation by acting in an offensive way.