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Uremic
- of or involving excess nitrogenous waste products in the urine (usually due to kidney insufficiency)
Uraemic
- of or involving excess nitrogenous waste products in the urine (usually due to kidney insufficiency)
Unifilar
- having or using only one filament
Unmyelinated
- (of neurons) not myelinated
Unthematic
- not relating to a melodic subject; "there is nothing unthematic in this composition"
Umbelliform
- resembling or in the form of an umbel
Umbelliferous
- relating to or belonging to plants of the family Umbelliferae
Uncial
- relating to or written in majuscule letters (which resemble modern capitals); "uncial letters"
- a style of orthography characterized by somewhat rounded capital letters; found especially in Greek and Latin manuscripts of the 4th to 8th centuries
Uniate
- of or relating to former Eastern Christian or Orthodox churches that have been received under the jurisdiction of the Church of Rome but retain their own rituals and practices and canon law
- a member of the Uniat Church