ko·​sam | \ ˈkōˌsam \
plural -s

Definition of kosam

: a small evergreen shrub (Brucea amarissima) of the family Simaroubaceae that is widely distributed in open country in much of southeastern Asia and in northern Australia, is noted for the bitterness of all its parts, and has various uses especially in local medicine — see kosam seed

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for kosam

origin unknown

Keep scrolling for more

Learn More about kosam

Statistics for kosam

Cite this Entry

“Kosam.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/kosam. Accessed 27 Nov. 2020.

Comments on kosam

What made you want to look up kosam? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!