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, pl.


(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]


, 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.


  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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involucrate sample were purchased from the local drugstore in Dezhou.
Attama AA, Obi EN and IT Nzekwe The effects of Hypochlorite-oxidation on the physicochemical properties of starch obtained from tacca involucrate.
Flowers usually not large and showy; usually actinomorphic, rarely with one calyx or petal lobe enlarged (Usteria); usually bisexual, occasionally unisexual or polygamo-dioecious; rarely involucrate (Coinochlamys): Pollination is various and may even include bats (Fagraea).
8-3 cm, exceeding the internodes, greenish or the upper ones reddish toward the apex and apical margins, nerved, sparsely white lanate near the base and at the apex to glabrescent, inconspicuously denticulate neat the apex to entire, the upper peduncle bracts involucrate and resembling the primary bracts.
Se comprensivo sin involucrate demasiado en una causa perdida.