Abbreviation commonly referring to C-reactive protein, a blood test marker for inflammation, or various other organizations and technical terms depending on context.
As an initialism for C-reactive protein, from 'C-reactive' (named for its reaction with C-polysaccharide of pneumococcus bacteria) and 'protein' (Greek 'proteios' meaning 'primary'). Discovered in 1930 and named for its specific bacterial reaction properties.
CRP exemplifies how medical breakthroughs get reduced to simple abbreviations that hide fascinating stories - this protein was discovered because it mysteriously appeared in patients' blood during pneumonia, leading to decades of research revealing it as a key inflammation marker. Now this three-letter combination can help predict heart disease risk.
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