1. emetic   loss of speech.   medicine that causes vomiting.   failure to tally or lack of consistency.   triangular tract of mud or sand at river's mouth.   Hint Half-n-half Clue   2. cipher   spread of disease by contact.   triangular tract of mud or sand at river's mouth.   secret code used to encrypt messages.   maker of maps.   Half-n-half Clue   3. contagion   cutting for analysis or examination.   spread of disease by contact.   maker of maps.   drug or treatment preventing infection.   Half-n-half Clue   4. balm   channel for fluid flow or aqueduct.   working of the brain or thought.   halo or circle of light.   ointment that helps in soothing pain.   Half-n-half Clue   5. atavism   resemblance to remote ancestors than parents.   triangular tract of mud or sand at river's mouth.   ability of system to maintain stability.   druggist or chemist.   Half-n-half Clue   6. catalyst   device used to maintain equilibrium.   agent to speed up chemical reaction without it changing.   swirling motion of water or air.   application that helps soothe or soften.   Half-n-half Clue   7. clavicle   animals of a region or era.   machine to separate substances by spinning.   small planet.   collarbone.   Half-n-half Clue