It's performed to correct single ventricle birth defect. The normal heart has fours chamber - two upper atria and two lower ventricles. With single ventricle there is either a comlpete absence of a second ventricle or it is underdeveloped. Cauterization creates a second ventricle or enlarges a poorly developed one. Source(s): I'm a nurse.
Trivet definition, a small metal plate with short legs, especially one put under a hot platter or dish to protect a table. See more.
â¢ PRIVET (noun). The noun PRIVET has 1 sense: 1. any of various Old World shrubs having smooth entire leaves and terminal panicles of small white flowers followed by small black berries; many used for hedges.Familiarity information: PRIVET used as a noun is very rare.alifornia privet; Ligustrum ovalifolium (semi-evergreen Japanese shrub having malodorous flowers; used extensively for hedges because more likely to stay green that common privet). common privet; Ligustrum vulgare (deciduous semi-evergreen shrub used for hedges).