1. kaleidoscope   coloring agent.   tube with patterns from colored glass piece reflections.   terms used in a science or discipline.   pointers or indications.   Hint Dica Meio-a-meio   2. parallelism   quantity that can be defined or that can limit.   similarity or state of being parallel.   observed fact or occurrence subject to scientific study.   substance that causes solid matter in solution to deposit.   Dica Meio-a-meio   3. symmetry   stone to test gold alloys; criterion.   speed or rate of motion.   partly lighted shadow.   pattern with balance or harmony.   Dica Meio-a-meio   4. pterodactyl   universal remedy or cure-all.   quantity that can be defined or that can limit.   unit for measuring light energy.   flying reptile now extinct.   Dica Meio-a-meio