thorn
thoron
thorough
thrasing
thread
thread-carrier
threaded
threadless
three
three-brush
  three-carbon
three-dimensional
threedimentional
three-membered
three-necked
three-ring
three-roll
threesegment
three-unit
three-way
three-wheel

    three-carbon rearrangement

    перегруппировка в системе трех углеродных атомов, аллильная изомеризация