1. substance or liquid that dissolves solute.   solvent   refraction   momentum   quadruped   Hint Half-n-half Clue   2. topmost point or summit.   vertex   prototype   pigment   parameter   Half-n-half Clue   3. primary type used as model.   velocity   pestle   prototype   symmetry   Half-n-half Clue   4. product of mass and velocity for a moving body; impetus.   syllogism   momentum   stratum   increment   Half-n-half Clue   5. animal with four feet.   vise   projectile   quadruped   vortex   Half-n-half Clue   6. size or extent.   molecule   trajectory   magnitude   patina   Half-n-half Clue   7. very tiny quantity.   iota   strut   nomenclature   refraction   Half-n-half Clue