A very small scar or the embryonic spot on an egg yolk; essentially another term for cicatricle.
From Latin 'cicatricula', diminutive of 'cicatrix' (scar). A more technical or scientific variant of cicatricle.
Cicatricula is Latin's way of saying 'teeny tiny scar'—three levels of diminishing: cicatrix (scar) becomes cicatricula (little scar) becomes... even littler.
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