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 There are 5 ten-letter words containing OSPERM| ANGIOSPERM | • angiosperm n. (Botany) Any plant of the clade Angiosperms, characterized by having ovules enclosed in an ovary; a flowering plant. • ANGIOSPERM n. a plant of the Angiospermae, one of the main divisions of flowering plants, in which the seeds are in a closed ovary, not naked as in gymnosperms. |  | ENDOSPERMS | • endosperms n. Plural of endosperm. • ENDOSPERM n. in a seed, nutritive tissue formed from the embryo-sac. |  | GYMNOSPERM | • gymnosperm n. (Botany) Any plant such as a conifer whose seeds are not enclosed in an ovary. • GYMNOSPERM n. a plant with the ovules borne naked or unprotected, the conifers or cone-bearing plants and their allies. |  | ZOOSPERMIA | • zoospermia n. The presence of live spermatozoa in the semen. • ZOOSPERMIUM n. one of the spermatic particles; a spermatozoid, also ZOOSPERM. |  | ZYGOSPERMS | • zygosperms n. Plural of zygosperm. • ZYGOSPERM n. a spore formed by union of two similar cells, also ZYGOSPORE. |  
 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 WikWik.org and 1Word.ws. 
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