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ochre
ochrea
-ock
ockerdom
Ockham’s razor
Ocmulgee
ocotillo
OCR
ocrea
OCS
Oct.
oct-
oct.
octa-
octad
octagon
octahedron
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ocrea

oc·re·a [ ókree ə ] (plural oc·re·ae [ ókree ee ])


noun 
Definition:
 
sheaf at base of leaf: a cup-shaped sheath formed by appendages at the base of a leaf, as in rhubarb

[Mid-19th century. < Latin, "soldier's leg-armor"]
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