calamus

noun
cal·​a·​mus | \ ˈka-lə-məs How to pronounce calamus (audio) \
plural calami\ ˈka-​lə-​ˌmī How to pronounce calami (audio) , -​ˌmē \

Definition of calamus

b : the aromatic peeled and dried rhizome of the sweet flag that is the source of a carcinogenic essential oil
2 : the hollow basal portion of a feather below the vane : quill

First Known Use of calamus

14th century, in the meaning defined at sense 1a

History and Etymology for calamus

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

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Time Traveler for calamus

The first known use of calamus was in the 14th century

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More Definitions for calamus

calamus

noun
cal·​a·​mus | \ ˈkal-ə-məs How to pronounce calamus (audio) \
plural calami\ -​ˌmī, -​ˌmē How to pronounce calami (audio) \

Medical Definition of calamus

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

More from Merriam-Webster on calamus

Britannica.com: Encyclopedia article about calamus

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