epiblem
noun
ep·i·blem
ˈepəˌblem
variants or epiblema
ˌepəˈblēmə
plural -s
: the superficial layer of tissue replacing the true epidermis in most roots and in stems of submerged aquatics
Word History
Etymology
New Latin epiblema, from Greek epiblēma covering, from epi- + blēma throw, coverlet, from ballein to throw