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1. The outer, protective, nonvascular layer of the skin of vertebrates, covering the dermis.
2. An integument or outer layer of various invertebrates.
3. The outermost layer of cells covering the leaves and young parts of a plant.

[Late Latin, from Greek : epi-, epi- + derma, skin; see der- in Indo-European roots.]

ep′i·der′mal (-məl), ep′i·der′mic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.epidermal - of or relating to a cuticle or cuticula
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Fact.MR has announced the addition of the "Epidermal Cell sheets Market Forecast, Trend Analysis & Competition Tracking - Global Review 2018 to 2028"report to their offering.
AstraZeneca today announced positive overall survival (OS) results from the Phase III FLAURA trial, a randomised, double-blinded, multi-centre trial of Tagrisso (osimertinib) in previously-untreated patients with locally-advanced or metastatic non-small cell lung cancer (NSCLC) whose tumours have epidermal growth factor receptor (EGFR) mutations.
The trial involved patients with locally-advanced or metastatic lung cancer and epidermal growth factor receptor mutations.
The European Commission has approved United States-based Pfizer's Vizimpro (dacomitinib) as a monotherapy intended for the first-line treatment of adult patients with locally advanced or metastatic non-small cell lung cancer with epidermal growth factor receptor-activating mutations, it was reported yesterday.
To the Editor.--We welcome the recently published American Society of Clinical Oncology (ASCO) and College of American Pathologists (CAP) clinical practice guideline focused update for human epidermal growth factor receptor 2 (HER2) testing in invasive breast carcinoma.
Steven Johnson syndrome (SJS) or Toxic epidermal necrolysis (TEN) is one of the cutaneous adverse drug reactions associated with eruptions of the skin and mucous membrane that can be potentially fatal.
Epidermal nevi are a subset of cutaneous hamartomas resulting from somatic mutations of epidermal cells, presenting as keratinocyte or epidermal appendage overgrowths.
Claire-Anne Siegrist, highlighted data from two additional cohorts showing that following skin preparation with an epidermal laser, anti-PT booster responses elicited by Viaskin-PT were comparable to those elicited by Boostrix dTpa, an injectable approved booster vaccine, DBV said in a statement.
The Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are two ends of the spectrum of severe immunobullous state, with long-term morbidity and high mortality, characterized by keratinocyte apoptosis.
Toxic epidermal necrolysis (TEN), also known as Lyell's syndrome, is a rare but severe mucocutaneous drug adverse reaction associated with high rate of mortality.
This anatomical connection was defined by Fitzpatrick and Breathnach as the "epidermal melanin unit".