biopsy /ˈbaɪɑpsi/noun 1verb 1forms 3 noun1 •The removal and examination of a sample of tissue, cells, or bodily fluid from a living body for diagnostic purposes.We will need to perform a biopsy to determine whether the tumour is malignant or benign. verb1 •To take a sample (a biopsy) for pathological examination.They biopsied the lump but it turned out to be non-cancerous. formsbiopsied · biopsying · biopsies