Bot. a tubelike covering around some stems, formed of the united stipules: found esp. in the buckwheat family
Origin of ocreaModern Latin from L, a legging, greave from Classical Greek okris, a projection, peak, edge from Indo-European an unverified form okri- from base an unverified form a?-, an unverified form o?-, sharp from source acid
nounpl. oc·re·ae, or och·re·ae
A sheath formed at the node of a stem by the fusion of two stipules, found in many plants of the family Polygonaceae, such as rhubarb.
Origin of ocreaLatin greave
(plural ocreas or ocreae)
- A leaf sheath typically does not fully encases the stem, and may also form around an axillary organ such as a bud.
From Latin ocrea (“greave, legging")