Simple Definition of appendage

from our Learner's Dictionary

appendage

noun

plural appendages
1
medical : a body part (such as an arm or a leg) connected to the main part of the body : limb
2
: something connected or joined to a larger or more important thing
The court system acts as an appendage to the government.
an appendage of a larger political party

Cite this Entry

“Appendage.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/appendage. Accessed 20 Jun. 2026.

More from Merriam-Webster