calamus

play
noun cal·a·mus \ˈka-lə-məs\

Definition of calamus

plural

calami

play \-ˌmī, -ˌmē\
  1. 1a :  sweet flagb :  the aromatic peeled and dried rhizome of the sweet flag that is the source of a carcinogenic essential oil

  2. 2 :  the hollow basal portion of a feather below the vane :  quill

Origin and Etymology of calamus

Latin, reed, reed pen, from Greek kalamos — more at haulm


First Known Use: 14th century


Medical Dictionary

calamus

play
noun cal·a·mus \ˈkal-ə-məs\

Medical Definition of calamus

plural

calami

\-ˌmī, -ˌmē\play
  1. 1:  sweet flag

  2. 2:  the aromatic peeled and dried rhizome of the sweet flag that is the source of a carcinogenic essential oil


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