say it: FAH-sfur-uhs
phosphorous is an adjective meaning "containing or characteristic of phosphorus". It is pronounced /ˈfɑsfɚəs/ — FAH-sfur-uhs. It carries one recorded sense.
Definitions, synonyms and semantic relations for phosphorous come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.