1) Operation 2) Surgery 3) Surgical operation 4) Surgical procedure 5) Surgical process 
Myringotomy (from Latin myringa `eardrum`) is a surgical procedure in which a tiny incision is created in the eardrum to relieve pressure caused by excessive buildup of fluid, or to drain pus from the middle ear. A tympanostomy tube is inserted into the eardrum to keep the middle ear aerated for a prolonged time and to prevent reaccumulation of .....
<procedure, surgery> The removal of fluid (often infected) from the middle ear space by creating a incision in the eardrum. Ear tubes may be placed to maintain chronic drainage for several months. Indicated in cases of chronic or recurrent otitis media. ... (27 Sep 1997) ... 
(mir″ing-got´o-me) incision of the tympanic membrane, usually for relief of pressure and drainage of fluid from the middle ear. Sometimes, as in the case of serous otitis media, a ventilating tube called a grommet is inserted to allow continuous ventilation and avoid a chronic middle ear problem with fluid accumulation,...
Incision in the ear drum to drain pus
Type: Term Pronunciation: mir′in-got′ŏ-mē Definitions: 1. Incision of the tympanic membrane. Synonyms: tympanotomy
Myringotomy: A surgically placed tiny incision in the eardrum. Any fluid behind the eardrum can then drain and usually thickened secretions can be removed. A small plastic ear tube (a tympanostomy tube) is often inserted into the eardrum to keep the middle ear aerated for a prolonged period of time. These ventilating tubes usually remain in place f...
[n] - surgical incision into the eardrum (to relieve pressure or release pus from the middle ear)
myringotomy 1. A surgical incision into the eardrum (to relieve pressure or to release pus from the middle ear). 2. A surgically placed tiny incision in the eardrum. Any fluid behind the eardrum can then drain and usually thickened secretions can be removed. A small plastic ear tube (a tympanostomy tube) is often inserted into the eardrum to keep ...
a surgical opening in the eardrum that allows for drainage 
noun surgical incision into the eardrum (to relieve pressure or release pus from the middle ear)
surgical incision of the tympanic membrane.
surgical procedure to remove infection from behind the ear drum.surgical procedure to remove infection from the mastoid bone.a surgical opening of the eardrum to release pressure on the middle ear.