A vehicle with three wheels, pedals, and handlebars, typically ridden by young children.
From Latin 'tri-' meaning three + Greek 'kyklos' meaning wheel. The word was invented in the 1800s as bicycles became popular and inventors created a three-wheeled variation for stability.
Tricycles were actually invented for adults first in the 1880s as a 'safer' alternative to bicycles, but they became associated with children because the low center of gravity and three wheels made them genuinely perfect for wobbly young riders.
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