polyenen.

Brit.

/ˈpɒlɪiːn/, U.S.

/ˈpɑliˌin/

Origin: Formed within English, by compounding. Etymons: poly- comb. form, -ene comb. form.

Etymology: < poly- comb. form + -ene comb. form.

Chemistry.

Any of a class of organic compounds containing two or more carbon–carbon double bonds, usually in a chain of conjugated single and double bonds. Frequently attributive.

ΘΚΠ

the world > matter > chemistry > organic chemistry > [noun] > organic structure > polyene

polyene1928

polyethenoid1935

polyolefin1936

1928 Chem. Abstr. 22 1768 (heading) Addition of hydrogen and bromine to the poly-enes.

1970 New Scientist 5 Nov. 260/1 The polyene macrolides are an important group of antibiotics.

2001 Proc. National Acad. Sci. U.S.A. 98 10134/2 The substitution..modifies the steric environment so as to release constraints imposed on the polyene chain.

Derivatives

polyˈenic adj. relating to or of the nature of a polyene.

ΘΚΠ

the world > matter > chemistry > organic chemistry > organic compounds > [adjective] > other organic compounds > of or relating to polyene

polyethenoid1935

polyenic1939

polyenoic1949

1939 Chem. Rev. 25 286 While all polyenic chains have a zigzag character, nevertheless they are non-branching chains which..we may regard as linear.

1972 Nature 21 Jan. 132/1 A quite different kind of molecule..is the polyenic visual pigment constituent, retinal.

1997 Science 23 May 1233/2 A series of carotenoids..had increasing intramolecular charge transfer from the polyenic chain to the acceptor moiety in the ground state.

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

单词	polyene
释义	polyenen. Brit. /ˈpɒlɪiːn/, U.S. /ˈpɑliˌin/ Origin: Formed within English, by compounding. Etymons: poly- comb. form, -ene comb. form. Etymology: < poly- comb. form + -ene comb. form. Chemistry. Any of a class of organic compounds containing two or more carbon–carbon double bonds, usually in a chain of conjugated single and double bonds. Frequently attributive. ΘΚΠ the world > matter > chemistry > organic chemistry > [noun] > organic structure > polyene polyene1928 polyethenoid1935 polyolefin1936 1928 Chem. Abstr. 22 1768 (heading) Addition of hydrogen and bromine to the poly-enes. 1970 New Scientist 5 Nov. 260/1 The polyene macrolides are an important group of antibiotics. 2001 Proc. National Acad. Sci. U.S.A. 98 10134/2 The substitution..modifies the steric environment so as to release constraints imposed on the polyene chain. Derivatives polyˈenic adj. relating to or of the nature of a polyene. ΘΚΠ the world > matter > chemistry > organic chemistry > organic compounds > [adjective] > other organic compounds > of or relating to polyene polyethenoid1935 polyenic1939 polyenoic1949 1939 Chem. Rev. 25 286 While all polyenic chains have a zigzag character, nevertheless they are non-branching chains which..we may regard as linear. 1972 Nature 21 Jan. 132/1 A quite different kind of molecule..is the polyenic visual pigment constituent, retinal. 1997 Science 23 May 1233/2 A series of carotenoids..had increasing intramolecular charge transfer from the polyenic chain to the acceptor moiety in the ground state. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1928
随便看	to enter arms to enter bonds to enter by the hawse-holes to enter by the hawseholes to enter come by the hawse-holes to enter come by the hawseholes to enter common to enter commons to enter creep by the hawse-holes to enter creep by the hawseholes to enter foot to enter get in by the hawse-holes to enter get in by the hawseholes to enter in a person's head to enter in a person's mind to enter in religion to enter in security to enter into a person's head to enter into a person's mind to enter into another's labours to enter into arms to enter into labours to enter into religion to enter into security to enter into suspicion with