1. anesthetic   botanical garden where trees are studied and exhibited.   substance producing condition of no sensation.   defect in eye or lens preventing proper focusing.   tooth of a wheel.   Hint Half-n-half Clue   2. diminution   reduction in size.   small pricking tool for piercing holes.   mixture of things sticking together in a mass.   swirling motion of water or air.   Half-n-half Clue   3. asteroid   small planet.   medicine that causes vomiting.   botanical garden where trees are studied and exhibited.   reduction in size.   Half-n-half Clue   4. decomposition   mixture of things sticking together in a mass.   united mass or coalition.   decay; breaking into component parts.   opening or gap.   Half-n-half Clue   5. catalyst   wasting away.   agent to speed up chemical reaction without it changing.   parallelism or similarity.   ability of system to maintain stability.   Half-n-half Clue   6. centrifuge   botanical garden where trees are studied and exhibited.   swirling motion of water or air.   machine to separate substances by spinning.   halo or circle of light.   Half-n-half Clue   7. dissection   cutting for analysis or examination.   triangular tract of mud or sand at river's mouth.   device used to maintain equilibrium.   secret code used to encrypt messages.   Half-n-half Clue