A special laboratory instrument with a grid-marked chamber used to count blood cells under a microscope.
From Greek 'haima' (blood) + 'kytos' (cell) + 'metron' (measure). Scientists designed this tool to quantify blood cells for diagnosing diseases.
A haemocytometer looks like a tiny glass sandwich with precise grid lines—lab technicians count cells in the squares to diagnose anemia, infection, or leukemia.
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