1. collection of stars or brilliant personalities.   chassis   homeostasis   galaxy   fulcrum   Hint Half-n-half Clue   2. substance producing condition of no sensation.   aperture   flora   conduit   anesthetic   Half-n-half Clue   3. formal discourse or essay.   acoustics   dissertation   fauna   alchemy   Half-n-half Clue   4. lizard noted for changing color to surroundings.   constraint   atavism   chameleon   humus   Half-n-half Clue   5. disproportion or lack of balance.   anesthetic   gyroscope   imbalance   delta   Half-n-half Clue   6. decay; breaking into component parts.   decomposition   alchemy   diminution   cerebration   Half-n-half Clue   7. channel for fluid flow or aqueduct.   acoustics   conduit   cistern   antiseptic   Half-n-half Clue