The Collaborative International Dictionary
Olusatrum
Olusatrum \O*lu"sa*trum\, n. [L. holusatrum, olusatrum; olus garden herb + ater black.] (Bot.) An umbelliferous plant, the common Alexanders of Western Europe ( Smyrnium Olusatrum).
Wiktionary
olusatrum
n. An umbelliferous plant, the common alexanders of Western Europe (''Smyrnium olusatrum'').