| AREOSTYLES | • areostyles n. Plural of areostyle. • AREOSTYLE n. a building or colonnade having columns four diameters or more apart, also ARAEOSTYLE.
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| ASTROCYTES | • astrocytes n. Plural of astrocyte. • ASTROCYTE n. a much-branched, star-shaped neuroglia cell.
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| CRAYONISTS | • crayonists n. Plural of crayonist. • CRAYONIST n. one who draws in crayon, also CRAYONER.
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| CYSTOCARPS | • cystocarps n. Plural of cystocarp. • CYSTOCARP n. the fructification in red seaweeds.
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| FORSYTHIAS | • forsythias n. Plural of forsythia. • FORSYTHIA n. any shrub of the genus Forsythia, a popular garden plant producing clusters of yellow jasmine-like flowers in the spring.
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| GRAYSTONES | • graystones n. Plural of graystone. • GRAYSTONE n. a grey igneous rock of volcanic origin, also GREYSTONE.
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| HYDROCASTS | • hydrocasts n. Plural of hydrocast. • HYDROCAST n. a gathering of water samples for analysis.
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| HYDROSTATS | • hydrostats n. Plural of hydrostat. • HYDROSTAT n. a contrivance or apparatus to prevent the explosion of steam boilers.
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| HYGROSTATS | • hygrostats n. Plural of hygrostat. • HYGROSTAT n. a machine for regulating the humidity of air.
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| MACROCYSTS | • macrocysts n. Plural of macrocyst. • MACROCYST n. an unusually large cyst.
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| PYROCLASTS | • pyroclasts n. Plural of pyroclast. • PYROCLAST n. ash and other debris ejected by a volcano.
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| ROYALMASTS | • royal␣masts n. Plural of royal mast. • ROYALMAST n. the highest part of a mast.
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| SALLYPORTS | • sallyports n. Plural of sallyport. • sally␣ports n. Plural of sally port.
 • SALLYPORT n. a gateway or opening for making a sally from a fortified place.
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| SOOTHSAYER | • soothsayer n. One who predicts the future, using magic, intuition or intelligence; a diviner. • soothsayer n. A mantis or rearhorse.
 • soothsayer n. (Obsolete) One who tells the truth; a truthful person.
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| STOCKYARDS | • stockyards n. Plural of stockyard. • STOCKYARD n. a large yard with pens where cattle are kept for slaughter, market etc.
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| STYROFOAMS | • styrofoams n. Plural of styrofoam. • STYROFOAM n. (tradename) a type of expanded plastic made from polystyrene.
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| TYROSINASE | • tyrosinase n. An enzyme, similar to catechol oxidase, that catalyzes the production of phenolic pigments such as melanin. • TYROSINASE n. an enzyme found in plants and animals.
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