An abbreviation for 'centtigram,' a unit of mass equal to one-hundredth of a gram, commonly used in measuring small quantities in science and medicine.
Modern abbreviation formed from 'centi-' (Latin for hundred) and 'gram' (Greek 'gramma' meaning written mark or small weight). Created in the 19th century with the metric system.
The metric system's abbreviations like 'ctg' reveal how scientists standardized measurements globally—before this, every country measured things differently, making trade and science nearly impossible!
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