医療器械[iryoukikai] medical appliances
器械[kikai] machine
機械化[kikaika] mechanization
機械警備[kikaikeibi] card-key system
機械語[kikaigo] machine language

機械文明[kikaibunmei] technical civilization
機械翻訳[kikaihonyaku] machine translation
工作機械[kousakukikai] machine tools
産業機械[sangyoukikai] industrial machinery
手械[tegashi] handcuffs

悪足掻き[waruagaki] useless resistance
一挙手一投足[ikkyoshuittousoku] slight effort
一足[issoku] pair (footwear)
一足[hitoashi] step
一足先[hitoashisaki] one step ahead

一足飛び[issokutobi] (at) one bound
逸足[issoku] fast runner
右足[migiashi] right foot
運動不足[undoubusoku] insufficient exercise
栄養不足[eiyoubusoku] malnutrition