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fistulize

verb
fis·​tu·​lize
variants: also British fistulise \ ˈ⸗⸗ˌlīz \
also British -ed/-ing/-s

Definition of fistulize 

transitive verb

: to produce (an artificial channel) by surgical means (as for relieving pressure in glaucoma)

intransitive verb

: to develop a fistula a fistulizing bone lesion

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