activation analysis

ac ti va tion a nal y sis |ˌaktəˈvāSHən ˌæktəˌveɪʃən əˈnæləsəs | ▶noun Chemistry a technique of analysis in which atoms of a particular element in a sample are made radioactive, typically by irradiation with neutrons, and their concentration is then determined radiologically.

activation energy

ac ti va tion en er gy ▶noun Chemistry the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.

activation analysis

ac ¦ti |va ¦tion ana |lysis ▶noun [ mass noun ] Chemistry a technique of analysis in which atoms of a particular element in a sample are made radioactive, typically by irradiation with neutrons, and their concentration is then determined radiologically.

activation energy

ac ¦ti |va ¦tion en ¦ergy ▶noun Chemistry the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction.

activation

activation n. f. nom féminin Action d ’activer.

activation

à c ti v á tion 名詞 U 作動, 始動 ; 〘化 〙活性化, 促進 .