local vent

local vent, local ventilating pipe

A pipe on the fixture side of a trap through which vapor or foul air is removed from the room or fixture.
References in periodicals archive ?
To determine whether these limpets might be hatchlings from a single maternal egg plaque, we compared their sequences with those of a comparable sample from the local vent population.
Additional analyses revealed that each crab-limpet sample was composed of genetically unrelated individuals, which as a group comprised a random draw of mitochondrial haplotypes from the local vent population.
1998), it is anticipated that mussels will once again populate the local vent habitats as sulfide concentrations decrease to levels observed before the eruption.