A platelet is a tiny cell fragment in the blood that helps it clot and stop bleeding when you get a cut.
From 'plate' plus the diminutive suffix '-let', meaning 'small plate or disk'. Under a microscope, platelets look like little flat disks.
When you get a scrape, platelets rush to the scene like microscopic emergency workers, sticking together to plug the leak. Without these tiny 'plates', even a small cut could become life-threatening.
Complete word intelligence in one call. Free tier — 50 lookups/day.