/mir'in got"euh mee, -ing-/ , n. , pl. myringotomies .
surgical incision of the tympanic membrane.
[ 1875-80; myring ( a ) tympanic membrane (cf. ML miringa membrane enclosing the brain, dissimilated form of LL meninga mêninx, s. mening- membrane) + -O- + -TOMY ]