invert(redirected from inverts)
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a. a person who adopts the role of the opposite sex
b. another word for homosexual
a. the lower inner surface of a drain, sewer, etc.
b. an arch that is concave upwards, esp one used in foundations
The floor or bottom of a conduit.
In plumbing, the lowest point or the lowest inside surface of a channel, conduit, drain, pipe, or sewer pipe.