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What does eu- mean in medical terms?
eu-
Meaning: good, normal, well, true
Type: Prefix
A prefix goes at the very start of a word, before the root. On this page: what eu- means, and real medical words that use it, each broken down into its parts.
Example words using eu-
eupnea
eu- (normal) + pnea (breathing) = normal, unlabored breathing
eu- (normal) + pnea (breathing) = normal, unlabored breathing
euthyroid
eu- (normal) + thyroid (the thyroid gland) = having normal thyroid function
eu- (normal) + thyroid (the thyroid gland) = having normal thyroid function
eukaryote
eu- (true) + kary (nucleus) + ote (one having) = an organism whose cells have a true nucleus
eu- (true) + kary (nucleus) + ote (one having) = an organism whose cells have a true nucleus
Shortened forms
Charts and notes shorten long terms — see the Medical Abbreviations guide for the short forms you will meet in real records.
Please note: This section teaches the language of medicine — what word parts mean and how terms are built. It is an educational reference, not medical advice. For the meaning of a word in your own medical record, ask the clinician who wrote it.