| UMP synthase | Uridine esterified by phosphoric acid on one or more sugar hydroxyl groups; UMP is typically uridine 5'-monophosphate; 2' and 3' derivatives also occur; precursor for the biosynthesis of other pyrimidine nucleotides. Synonym: UMP synthase, uridine 5'-monophosphate. Uridylic acid synthase, a bifunctional enzyme that contains the activities of both orotate phosphoribosyltransferase and orotidine-5'-monophosphate decarboxylase; catalyses a key step in pyrimidine biosynthesis; a deficiency of this enzyme leads to orotic aciduria. (05 Mar 2000) |
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| umbilicus |
hole or cavity next to the base of the columella (in loosely coiled gastropods).
출처: gmbis.marinebiodiversity.ca/BayOfFundy/glossU-Z.ht...
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| umbo |
prominence or protuberance of bivalve shell above the hinge; beak.
출처: gmbis.marinebiodiversity.ca/BayOfFundy/glossU-Z.ht...
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| umbilicus |
open space, in the position of axis of coiling, which is left when successive whorls do not reach this axis.
출처: www.palaeos.com/Invertebrates/Molluscs/Cephalopoda...
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| umbo |
in mussels, the umbo is the small hump near the hinge of the two shell halves; the umbo is the oldest part of the shell, with all new growth occurring at the shell
출처: www.kentuckyawake.org/templates/glossary/
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| umbilical cord |
Cord that connects the fetus to the maternal placenta, providing nutrients and removing wastes
출처: dictionary.rare-cancer.org/dictionary.php
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| UM | a plant of the genus Mirabilis |
|---|---|
| UM | a mountainous region in central Italy |
| UM | an extinct Italic language of ancient southern Italy |
| UM | croakers |
| UM | fish of North American Pacific coast |
| UM | a Bantu language spoken in Angola |
| UM | a diacritical mark (two dots) placed over a vowel in German to indicate a change in sound |
| UM | an official at a baseball game |
| UM | the act of umpiring |
| UM | mediation by an umpire |
| UM | an official at a baseball game |
| UM | be a referee or umpire |