photodissociatev.

Brit.

/ˌfəʊtə(ʊ)dᵻˈsəʊʃɪeɪt/,

/ˌfəʊtə(ʊ)dᵻˈsəʊsɪeɪt/, U.S.

/ˈˌfoʊdoʊdəˈsoʊʃiˌeɪt/,

/ˈˌfoʊdoʊdəˈsoʊsiˌeɪt/

Origin: Formed within English, by compounding. Etymons: photo- comb. form, dissociate v.

Etymology: < photo- comb. form + dissociate v., after photodissociation n.

Chemistry.

transitive. To dissociate by means of light. Also intransitive: to undergo photodissociation.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [verb (transitive)] > dissociate

photodissociate1940

1940 Proc. Royal Soc. A. 175 203 Nor do these results conflict with the observation..that photo-dissociating ammonia can effect decomposition of hydrazine.

1962 F. I. Ordway et al. Basic Astronautics vi. 249 Water vapor is constantly being photodissociated by the action of sunlight.

1969 Nature 22 Nov. 756/2 NH₃, H₂O and H₂CO can all be photodissociated by ultraviolet photons of E < 13·6 eV.

1993 Biochemistry 32 5809/2 Recent time-resolved resonance Raman studies..indicate that CO does photodissociate from the α subunits and undergoes more extensive geminate recombination.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	photodissociate
释义	photodissociatev. Brit. /ˌfəʊtə(ʊ)dᵻˈsəʊʃɪeɪt/, /ˌfəʊtə(ʊ)dᵻˈsəʊsɪeɪt/, U.S. /ˈˌfoʊdoʊdəˈsoʊʃiˌeɪt/, /ˈˌfoʊdoʊdəˈsoʊsiˌeɪt/ Origin: Formed within English, by compounding. Etymons: photo- comb. form, dissociate v. Etymology: < photo- comb. form + dissociate v., after photodissociation n. Chemistry. transitive. To dissociate by means of light. Also intransitive: to undergo photodissociation. ΘΚΠ the world > matter > physics > electromagnetic radiation > light > scientific effects of light > [verb (transitive)] > dissociate photodissociate1940 1940 Proc. Royal Soc. A. 175 203 Nor do these results conflict with the observation..that photo-dissociating ammonia can effect decomposition of hydrazine. 1962 F. I. Ordway et al. Basic Astronautics vi. 249 Water vapor is constantly being photodissociated by the action of sunlight. 1969 Nature 22 Nov. 756/2 NH₃, H₂O and H₂CO can all be photodissociated by ultraviolet photons of E < 13·6 eV. 1993 Biochemistry 32 5809/2 Recent time-resolved resonance Raman studies..indicate that CO does photodissociate from the α subunits and undergoes more extensive geminate recombination. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < v.1940
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