ump

(ŭmp) Sports.
n.
An umpire.

intr.v., umped, ump·ing, umps.
To serve as an umpire.

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noun

A person, usually appointed, who decides the issues or results, or supervises the conduct, of a competition or conflict: arbiter, arbitrator, judge, referee, umpire. Sports ref. See decide/hesitate.

noun
noun, mainly US

Abbreviation of 'umpire', spec. in baseball. Also umps. (1915 —) .
Arizona Daily Star A few bad calls by the rookie umps will no doubt be cause for more outcries from the baseball world (1979).

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abbr. for uridine monophosphate; i.e. uridine phosphate.

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Uridine 5′-monophosphate, a pyrimidine nucleotide.

• UMP synthase deficiency — an inherited absence of the enzyme, which assists in the conversion of orotate to UMP, results in the accumulation of orotate and its excretion in large amounts in the milk. Bovine homozygotes for the condition die at fetal age of about 40 days.

For a list of words related to ump, see:

• Baseball - ump: umpire

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See words rhyming with "ump."