1. residue from smelting operation.   symmetry   yield   slag   turbulence   Hint Half-n-half Clue   2. product of mass and velocity for a moving body; impetus.   terminology   momentum   parallelism   inconsistency   Half-n-half Clue   3. breathing.   respiration   parameter   refraction   phenomenon   Half-n-half Clue   4. similarity or state of being parallel.   solstice   uniformity   pterodactyl   parallelism   Half-n-half Clue   5. noxious exhalation from swamps and putrid matter.   miasma   synthesis   prototype   perigee   Half-n-half Clue   6. mental disorder.   repulsion   psychosis   slag   isotope   Half-n-half Clue   7. poisonous element that communicates infection.   quadruped   metamorphosis   virus   parasite   Half-n-half Clue