接点
  切点
  せってん
  noun (common) (futsuumeishi)
  mathematics
  tangent point
  point of contact
  contact (electrical, etc.)
  point of agreement
  common ground
  interaction
  ◄ ►
  節点
  せってん
  noun (common) (futsuumeishi)
  node
  nodal point
  joint (e.g. in a framework)
  ◄ ►