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termolecular
termolecular adj.
Brit. 
/ˌtəːməˈlɛkjᵿlə/
, /ˌtəːməˈlɛkjᵿlə/U.S. /ˌtərməˈlɛkjələr/
involving three molecules./ˌtərməˈlɛkjələr/ΘΚΠ
the world > matter > chemistry > chemical reactions or processes > [adjective] > of or relating to molecularity > of three
termolecular1901
the world > matter > chemistry > atomic chemistry > [adjective] > relating to molecules > by number
monomolecular1876
bimolecular1899
termolecular1901
supermolecular1908
polymolecular1922
1901 Jrnl. Chem. Soc. 79 i. 229 Even in darkness the action is termolecular.
1931 Maass & Steacie Introd. Princ. Physical Chem. xii. 199 The reaction between nitric oxide and chlorine is an example of a termolecular reaction.
1974 Nature 19 Apr. 666/2 The dimer must be formed by a termolecular collision.
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