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There are 8 thirteen-letter words containing OSTRA| CIRROSTRATIVE | • cirrostrative adj. Relating to, or characteristic of cirrostratus clouds. • CIRROSTRATIVE adj. of or like cirrostratus. | | CUMULOSTRATUS | • cumulostratus n. Synonym of stratocumulus. • CUMULOSTRATUS n. a type of cloud. | | ENTOMOSTRACAN | • entomostracan adj. (Zoology) Relating to the Entomostraca. • entomostracan n. (Zoology) One of the Entomostraca. • ENTOMOSTRACAN n. any of the lower order of crustaceans. | | FRACTOSTRATUS | • FRACTOSTRATUS n. a type of cloud. | | GEOSTRATEGIES | • geostrategies n. Plural of geostrategy. • GEOSTRATEGY n. a branch of geopolitics that deals with strategy. | | GEOSTRATEGIST | • geostrategist n. A geopolitical strategist; one concerned with the strategies of political geography. • GEOSTRATEGIST n. one who studies geostrategy. | | MALACOSTRACAN | • malacostracan n. (Zoology) Any of very many crustaceans of the class Malacostraca. • MALACOSTRACAN n. any of a large subclass of crustaceans having a thorax consisting of eight segments usually covered by a carapace and including the decapods and isopods. | | PERIOSTRACUMS | • PERIOSTRACUM n. the horny outer layer of a mollusc's shell. |
Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America. Definitions are short excerpt from the 1Word.ws and WikWik.org.
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