13-letter words containing a, m, u, g, s
- plagiostomous — plagiostome
- pneumogastric — of or relating to the lungs and stomach.
- program music — music intended to convey an impression of a definite series of images, scenes, or events.
- quadragesimal — of, relating to, or suitable for Lent; Lenten.
- quinquagesima — the Sunday before Lent; Shrove Sunday.
- regiomontanus — Friedrich Max [free-drik maks;; German free-drikh mahks] /ˈfri drɪk mæks;; German ˈfri drɪx mɑks/ (Show IPA), 1823–1900, English Sanskrit scholar and philologist born in Germany.
- rhumb sailing — sea navigation along rhumb lines.
- rogue's march — a derisive tune played to accompany a person's expulsion from a regiment, community, etc.
- rose geranium — a geranium, Pelargonium graveolens, cultivated for its fragrant, lobed or narrowly divided leaves.
- sargassumfish — an olive-brown and black frogfish, Histrio histrio, inhabiting tropical Atlantic and western Pacific seas among floating sargassum weed.
- scavenge pump — an oil pump used in some internal-combustion engines to return oil from the crankcase to the oil tank
- self-assuming — taking too much for granted; presumptuous.
- spermatangium — the organ that produces spermatia in red algae.
- sphagnum moss — Botany
- 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.
- standing jump — a jump performed from a stationary position without a run-up
- sterculia gum — karaya gum.
- subassemblage — a group of persons or things gathered or collected; an assembly; collection; aggregate.
- sugar of milk — lactose.
- superorganism — a form of life composed of mutually interdependent parts that maintain various vital processes.
- surge chamber — a chamber for absorbing surge from a liquid or gas.
- thaumaturgist — a worker of wonders or miracles; magician.
- tsutsugamushi — any of various rickettsial disease, including scrub typhus
- tungsten lamp — an incandescent electric lamp in which the filament is made of tungsten.
- unambiguously — plainly, clearly
- unstigmatized — to set some mark of disgrace or infamy upon: The crime of the father stigmatized the whole family.
- unstimulating — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- zero-sum game — a game in which the sum of the winnings and losses of the various players is always zero, the losses being counted negatively.
- zoosporangium — a sporangium or spore case in which zoospores are produced.