| sequestrum / involucrum | <radiology> Sequelae of osteomyelitis, sequestrum, necrotic bone, often denser than surroundings, may be resorbed, discharged through a sinus tract, or persist as a focus of continued infection, involucrum, bone formed beneath elevated periosteum, surrounds sequestrum (12 Dec 1998) |
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| involucrum | 1. <botany> See Involucre. 2. <zoology> A sheath which surrounds the base of the lasso cells in the Siphonophora. Origin: L. See Involucre. Source: Websters Dictionary (01 Mar 1998) |
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| primary sequestrum | A completely detached sequestrum. (05 Mar 2000) |
| sequestrum | A piece of dead bone that has become separated during the process of necrosis from the sound bone. (18 Nov 1997) |