Definition of "ectodermal" [ec•to•der•mal]

• Of or pertaining to the ectoderm (adjective)

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• "We continue: As development proceeds a movement of the cells takes place from the ectodermal sac into the constantly enlarging body (pl. 26, fig. 1)."
• "We continue:As development proceeds a movement of the cells takes place from the ectodermal sac into the constantly enlarging body pl. 26, fig."
• "The research was targeted at helping people with ectodermal dysplasia, an inherited condition that is characterised by the abnormal development of hair, skin, nails, teeth and sweat glands."