[ si-kwes-truhm ]
/ sɪˈkwɛs trəm /
Save This Word!

noun, plural se·ques·tra [si-kwes-truh]. /sɪˈkwɛs trə/. Pathology.
a fragment of bone that has become necrotic as a result of disease or injury and has separated from the normal bone structure.
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

Origin of sequestrum

1825–35; <New Latin; Medieval Latin: sequestrated property, derivative of Latin sequester;see sequester


se·ques·tral, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022


What is a sequestrum?

A sequestrum is a fragment of dead bone or other tissue that has separated from healthy tissue as a result of injury or disease.

The proper plural of sequestrum is sequestra.

Sequestra often end up in a wound or abscess (a collection of pus). The surgical procedure involving the removal of a sequestrum is called a sequestrectomy.

Sequestra can occur in many different areas of the body, such as the arms, legs, feet, spine, and hips.

Example: The sequestrum is a bone fragment that was apparently chipped during a particularly forceful high-five.

Where does sequestrum come from?

The first records of the word sequestrum come from the 1800s. It comes from a Latin term meaning “something separated.”

Bits of bone or tissue that have separated from healthy tissue, such as through injury, are often described as necrotic, meaning that that portion of it is dead. Such sequestra can cause problems, including preventing proper healing of the affected area. They can sometimes be treated with medicine, but they often need to be removed through a sequestrectomy.

Did you know ... ?

What are some other forms related to sequestrum?

What are some words that share a root or word element with sequestrum

What are some words that often get used in discussing sequestrum?



How is sequestrum used in real life?

Sequestrum is a technical medical term.



Try using sequestrum!

Which of the following things is most likely to be considered a sequestrum?

A. appendix
B. bone fragment
C. tonsil
D. toenail

How to use sequestrum in a sentence

British Dictionary definitions for sequestrum

/ (sɪˈkwɛstrəm) /

noun plural -tra (-trə)
pathol a detached piece of necrotic bone that often migrates to a wound, abscess, etcSee sequester

Derived forms of sequestrum

sequestral, adjective

Word Origin for sequestrum

C19: from New Latin, from Latin: something deposited;
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012