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tubercle
critic

tu·ber·cle

tubercle

 
pronunciation:
tu br kl [or] tyu br kl
part of speech: noun
definition 1: a small, rounded lump or outgrowth on a plant or animal, as on the roots of some legumes or as sometimes on the skin or a bone.
definition 2: a small abnormal or diseased swelling or lesion on the skin or in an organ, esp. one caused by tuberculosis.