periderm

[per-i-durm]

noun

Botany. the cork-producing tissue of stems together with the cork layers and other tissues derived from it.
Embryology. epitrichium.

Origin of periderm

From the New Latin word peridermis, dating back to 1830–40. See peri-, -derm

Related formsper·i·der·mal, per·i·der·mic, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for periderm

Historical Examples of periderm

The development and configuration of the cork cells may change periodically during the formation of periderm.
Cork: Its Origin and Industrial Uses
Gilbert E. Stecher
When in this manner a continuous layer of cork arises, steadily increasing from the inside, it is termed “periderm.”
Cork: Its Origin and Industrial Uses
Gilbert E. Stecher
As the epidermis is at first replaced by the periderm, so in turn is this replaced by cork (the dead tissue).
Cork: Its Origin and Industrial Uses
Gilbert E. Stecher

British Dictionary definitions for periderm

periderm

noun

the outer corky protective layer of woody stems and roots, consisting of cork cambium, phelloderm and cork

Derived Formsperidermal or peridermic, adjective

Word Origin for periderm

C19: from New Latin peridermis

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

periderm in Medicine

periderm

[pĕr′ĭ-dûrm′]

The outermost layer of the epidermis of an embryo or fetus up to the sixth month of gestation.epitrichium

periderm in Science

periderm

[pĕr′ĭ-dûrm′]

The outer, protective layers of tissue of woody roots and stems, consisting of the cork cambium and the tissues produced by it. See more at cork cambium.