English-Thai Dictionary
catalysis
N การ เพิ่ม ปฏิกิริยา ทาง เคมี การ เร่ง ปฏิกิริยาเคมี kan-poem-pa-ti-ki-ri-ya-tang-ke-me
Webster's 1828 Dictionary
CATALYSIS
n.Dissolution.
Webster's 1913 Dictionary
CATALYSIS
Ca *tal "y *sis, n.; pl. Catalyse. Etym: [ML. , fr. Gr.
1. Dissolution; degeneration; decay. [R.] Sad catalysis and declension of piety. Evelyn.
2. (Chem. ) (a ) A process by which reaction occurs in the presence of certain agents which were formerly believed to exert an influence by mere contact. It is now believed that such reactions are attended with the formation of an intermediate compound or compounds, so that by alternate composition and decomposition the agent is apparenty left unchanged; as, the catalysis of making ether from alcohol by means of sulphuric acid; or catalysis in the action of soluble ferments (as diastase, or ptyalin ) on starch. (b ) The catalytic force.
New American Oxford Dictionary
catalysis
ca tal y sis |kəˈtaləsis kəˈtæləsəs | ▶noun Chemistry & Biochemistry the acceleration of a chemical reaction by a catalyst. ORIGIN mid 19th cent.: from modern Latin, from Greek katalusis, from kataluein ‘dissolve, ’ from kata- ‘down ’ + luein ‘loosen. ’
Oxford Dictionary
catalysis
catalysis |kəˈtalɪsɪs | ▶noun [ mass noun ] the acceleration of a chemical reaction by a catalyst. ORIGIN mid 19th cent.: from modern Latin, from Greek katalusis, from kataluein ‘dissolve ’, from kata- ‘down ’ + luein ‘loosen ’.
Sanseido Wisdom Dictionary
catalysis
ca tal y sis /kətǽləsɪs /名詞 複 -ses /-sɪ̀ːz /U C 1 〘化 〙触媒作用 [現象 ]; 接触反応 〘固体触媒による 〙.2 誘因, 人 [物 ]の関係に影響を及ぼす人 [事 ].
The Wordsmith Dictionary