A portion of a total, especially of a block of assets such as cash or securities: the riskiest tranche of the bond offering; money delivered in two tranches. 2. A cut or slice of meat: a tranche of sirloin.
Cold weather is the primary cause of hypothermia. When your body experiences extremely cold temperatures, it loses heat more quickly than it can produce it. Staying in cold water too long can also cause these effects. The inability to produce adequate body heat is extremely dangerous.
Possible Reasons for Low Body Temperature. The most common cause of hypothermia is a drop in the temperature of the environment around a person. Exposure to any environment where the temperature is lower than your body can lead to hypothermia if the exposure is prolonged and if you are inadequately covered.