tricyclicadj.n.

Brit.

/trʌɪˈsɪklɪk/,

/trʌɪˈsʌɪklɪk/, U.S.

/ˌtraɪˈsaɪklɪk/,

/ˌtraɪˈsɪklɪk/

Etymology: < Greek τρι- tri- comb. form + κύκλος circle + -ic suffix.

1. Botany. Arranged in three whorls.

ΘΚΠ

the world > plants > part of plant > (defined by) distribution, arrangement, or position > [adjective] > in verticil or whorl (of arrangement) > arranged in verticil or whorl > arranged in number of whorls

bicyclic1880

monocyclic1882

tricyclic1900

1900 in B. D. Jackson Gloss. Bot. Terms

2. Chemistry.

a. Of a carbon compound: Having three rings or closed chains of atoms in its structural formula; e.g. phenanthrene. (German tricyklisch.)

ΘΚΠ

the world > matter > chemistry > organic chemistry > [adjective] > organic structure > cyclic or ring compounds > tricyclic

tricyclic1891

1891 Jrnl. Chem. Soc. 60 1258 The two best known tricyclic compounds, anthracene and phenanthrene.

b. spec. in Pharmacology, designating or pertaining to a group of antidepressant drugs based upon a molecular structure of three fused rings; also as n.

ΘΚΠ

the world > health and disease > healing > medicines or physic > medicines for specific purpose > medicine for mental conditions > [adjective] > antidepressant > type of

tricyclic1966

1966 Internat. Jrnl. Neuropharmacol. 5 299 (heading) Association between biochemical and behavioral actions of tricyclic antidepressants.

1972 Daily Tel. 4 Mar. 32/3 He said pregnant women should steer clear of all drugs if possible, particularly drugs known as tricyclic anti~depressants.

1973 Sci. Amer. Sept. 121/2 The chemical structures of these two classes of antidepressants—the monamine oxidase inhibitors and the tricyclics—are quite different.

1980 J. Wainwright Man of Law i. 18 I suggested..a good tricyclic antidepressant.

This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2022).

单词	tricyclic
释义	tricyclicadj.n. Brit. /trʌɪˈsɪklɪk/, /trʌɪˈsʌɪklɪk/, U.S. /ˌtraɪˈsaɪklɪk/, /ˌtraɪˈsɪklɪk/ Etymology: < Greek τρι- tri- comb. form + κύκλος circle + -ic suffix. 1. Botany. Arranged in three whorls. ΘΚΠ the world > plants > part of plant > (defined by) distribution, arrangement, or position > [adjective] > in verticil or whorl (of arrangement) > arranged in verticil or whorl > arranged in number of whorls bicyclic1880 monocyclic1882 tricyclic1900 1900 in B. D. Jackson Gloss. Bot. Terms 2. Chemistry. a. Of a carbon compound: Having three rings or closed chains of atoms in its structural formula; e.g. phenanthrene. (German tricyklisch.) ΘΚΠ the world > matter > chemistry > organic chemistry > [adjective] > organic structure > cyclic or ring compounds > tricyclic tricyclic1891 1891 Jrnl. Chem. Soc. 60 1258 The two best known tricyclic compounds, anthracene and phenanthrene. b. spec. in Pharmacology, designating or pertaining to a group of antidepressant drugs based upon a molecular structure of three fused rings; also as n. ΘΚΠ the world > health and disease > healing > medicines or physic > medicines for specific purpose > medicine for mental conditions > [adjective] > antidepressant > type of tricyclic1966 1966 Internat. Jrnl. Neuropharmacol. 5 299 (heading) Association between biochemical and behavioral actions of tricyclic antidepressants. 1972 Daily Tel. 4 Mar. 32/3 He said pregnant women should steer clear of all drugs if possible, particularly drugs known as tricyclic anti~depressants. 1973 Sci. Amer. Sept. 121/2 The chemical structures of these two classes of antidepressants—the monamine oxidase inhibitors and the tricyclics—are quite different. 1980 J. Wainwright Man of Law i. 18 I suggested..a good tricyclic antidepressant. This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2022). < adj.n.1891
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