1. drug that reduces pain.   anodyne   autopsy   apogee   astigmatism   Hint Half-n-half Clue   2. deficiency of red blood corpuscles.   consistency   anemia   congruence   correlation   Half-n-half Clue   3. ability of system to maintain stability.   homeostasis   alchemy   discrepancy   extrapolation   Half-n-half Clue   4. spread of disease by contact.   contagion   die   cistern   dichotomy   Half-n-half Clue   5. botanical garden where trees are studied and exhibited.   autopsy   fulcrum   anemia   arboretum   Half-n-half Clue   6. opposite statement or position turned round.   chameleon   converse   flux   consistency   Half-n-half Clue   7. point on which lever is supported.   fulcrum   alchemy   centrifuge   fusion   Half-n-half Clue