Polypeptide of wide distribution in both prokaryotes and eukaryotes. It is attached to proteins prior to their degradation in the course of cellular protein turnover.
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The popular name for the mammary glands of certain animals, eg of the cow. mare, sow and ewe.
The first X-ray astronomy satellite. Launched from Kenya in 1970. it made the first detailed map of the X- ray sky.
A variety of natural asphalt occurring in the Uinta Valley, Utah, as rounded masses of brilliant black solid hydrocarbon. Also gilsonite.
Burning test for polymers where a rod, held in a flame under test conditions, is rated on a scale depending on eg the rate of burning. See NBS smoke test
Of the nature of, or pertaining to. ulcers; causing ulceration; associated with ulceration eg ulcerative colitis.