involucre

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Related to Involucred: pappus, raceme

in·vo·lu·crum

, pl.

in·vo·lu·cra

(in'vō-lū'krŭm, -loo'kră),
1. An enveloping membrane, for example, a sheath or sac.
2. The sheath of new bone that forms around a sequestrum.
Synonym(s): involucre
[L. a wrapper, fr. in-volvo, to roll up]

involucre

, involucrum (ĭn′vō-lū″kĕr) (ĭn″vō-lū′krŭm) [″ + volvere, to wrap]
1. A sheath or covering.
2. The covering of newly formed bone enveloping the sequestrum in infection of the bone.

involucre

  1. a calyx-like structure formed by bracts below the base of a condensed INFLORESCENCE.
  2. a growth of the tissue of the thallus in liverworts (see HEPATICA that covers and protects the ARCHEGONIUM.
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