(proscribed) Misspelling of phosphorus.

Alternative spelling of Phosphorus (“the planet Venus, as the morning star”)

Misspelling of phosphorelay.

(chemistry) Of or pertaining to phosphorus. / Resembling phosphorus. / (chemistry) Of relating to or containing trivalent phosphorus.

(chemistry) Any of various compounds of transition metals or of rare earths that exhibit phosphorescence. / (chemistry, obsolete) Phosphorus.

(obsolete) phosphorescent

(transitive) To combine or treat with phosphorus; to phosphorate.

(rare) phosphorescent

(transitive) To combine or treat with phosphorus; to phosphorize.

chronic phosphorus poisoning