reactant
N ผู้ ตอบสนอง phu-tob-sa-nong
re ac tant |rēˈaktənt riˈæktnt | ▶noun Chemistry a substance that takes part in and undergoes change during a reaction.
react |ant |rɪˈakt (ə )nt | ▶noun Chemistry a substance that takes part in and undergoes change during a reaction.