1. increase.   objective   nomenclature   increment   pestle   Hint Half-n-half Clue   2. coloring agent.   pigment   incline   parameter   momentum   Half-n-half Clue   3. similarity or state of being parallel.   stratum   parallelism   parameter   iota   Half-n-half Clue   4. ring (of leaves around the stem).   refraction   pestle   whorl   perimeter   Half-n-half Clue   5. incompatibility or lack of uniformity.   inconsistency   pigment   mirage   symbiosis   Half-n-half Clue   6. time when sun is farthest from the equator.   solstice   inconsistency   objective   trajectory   Half-n-half Clue   7. array of numbers or symbols; mold or die.   slag   velocity   matrix   solstice   Half-n-half Clue