Of or relating to the ectoderm; having the characteristics of tissue derived from the outer embryonic layer.
From 'ectoderm' + '-ic' (relating to). This variant form of ectodermal appears frequently in scientific literature, particularly in pathology and developmental biology texts from the 20th century onward.
Scientists use both 'ectodermal' and 'ectodermic' interchangeably, but 'ectodermic' sounds more scientific in specialized papers—it's one of those cases where precision in vocabulary marks you as a real expert.
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