counteropening

A second opening made at the dependent part of an abscess or other cavity containing fluid, which is not draining satisfactorily through a previous opening. SYN: contraaperture, counterpuncture.

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coun·ter·open·ing 'kau̇n-tər-.ōp-(ə-)niŋ n an aperture on the opposite side or in a different place specif a surgical opening made opposite another to facilitate drainage (as of an abscess)

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coun·ter·open·ing (koun″tər-oґpən-ing) a second incision made across an earlier one to promote drainage.