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We found 18 dictionaries with English definitions that include the word prothallus: Click on the first link on a line below to go directly to a page where "prothallus" is defined. General (12 matching dictionaries) prothallus: American Heritage Dictionary of the English Language [home, info] prothallus: Collins English Dictionary [home, info] prothallus: Merriam-Webster's Online Dictionary, 11th Edition [home, info] prothallus: Wordnik [home, info] prothallus: Infoplease Dictionary [home, info] prothallus: Dictionary.com [home, info] Prothallus: Wikipedia, the Free Encyclopedia [home, info] Prothallus: Online Plain Text English Dictionary [home, info] prothallus: Webster's Revised Unabridged, 1913 Edition [home, info] Prothallus: AllWords.com Multi-Lingual Dictionary [home, info] prothallus: Free Dictionary [home, info] prothallus: Dictionary/thesaurus [home, info] Computing (1 matching dictionary) prothallus: Encyclopedia [home, info] Medicine (1 matching dictionary) prothallus: online medical dictionary [home, info] Science (4 matching dictionaries) prothallus: Botanical Terms [home, info] prothallus: On-Line Biology Book: GLOSSARY [home, info] prothallus: Bryological [home, info] prothallus: Flora of New South Wales [home, info]

Quick definitions (prothallus) (n.) The minute primary growth from the spore of ferns and other Pteridophyta, which bears the true sexual organs; the oophoric generation of ferns, etc. (This definition is from the 1913 Webster's Dictionary and may be outdated.)