Elench :: Elench (n.) That part of an argument on which its conclusiveness depends; that which convinces of refutes an antagonist; a refutation.
Elench :: Elench (n.) A specious but fallacious argument; a sophism.
Elenctical :: Elenctical (a.) Serving to refute; refutative; -- applied to indirect modes of proof, and opposed to deictic..
Myelencephalic :: Myelencephalic (a.) Of or pertaining to the myelencephalon; cerebro-spinal.
Myelencephalon :: Myelencephalon (n.) The brain and spinal cord; the cerebro-spinal axis; the neuron. Sometimes abbreviated to myelencephal.