sequestrum noun. [sɪ'kwɛstrǝm] Pl. -stra [-strǝ]. M19.
[medieval Latin: see SEQUESTER noun.]
Medicine. A piece of dead bone in a sheath of live bone, formed by necrosis and occurring esp. in cases of osteomyelitis. Also, a portion of skin separated by disease from the surrounding parts.

■ sequestral adjective L19.

■ sequestrectomy [-'strɛktǝmi] noun (an instance of) surgical removal of a sequestrum or sequestra M20.

[TahlilGaran] English Dictionary ▲