phellem

[fel-uh m, -em] /ˈfɛl əm, -ɛm/
noun, Botany
1.
cork (def 6).
Origin
1885-90; < Greek phell(ós) cork + (phlo)em
British Dictionary definitions for phellem

phellem

/ˈfɛləm/
noun
1.
(botany) the technical name for cork (sense 4)
Word Origin
C20: from Greek phellos cork + phloem
phellem in Science
phellem
  (fěl'əm)   
See cork.