Definition of tricyclic in English:

tricyclic

adjective trʌɪˈsʌɪklɪktrīˈsīklik

Chemistry

(of a compound) having three rings of atoms in its molecule.
〔化〕（化合物）三环的
Example sentencesExamples
- In addition to monocyclic shoots, there are also bicyclic ones, and on the branches in the canopy top there are even tricyclic vegetative shoots.
- Quinacrine is a planar tricyclic compound with structural similarities to DMMB, yet it does not absorb red light.
- In addition, all methyl sulfone containing compounds in the tricyclic class are very poorly bioavailable.
- The danger of precipitating mania is reported to be greatest with tricyclic agents.
- Clomipramine was equal to desipramine and both tricyclic agents were superior to placebo for amelioration of hyperactivity.

noun trʌɪˈsʌɪklɪktrīˈsīklik

usually tricyclicsMedicine

Any of a class of antidepressant drugs having molecules with three fused rings.
〔医〕三环抗抑郁药物
Example sentencesExamples
- However inspection of comparative studies in fall risk between SSRIs and tricyclics suggest these two antidepressant classes exhibit similar risks of fall.
- Over half of the prescriptions were for the class antidepressants known as tricyclics, while four out of 10 were for SSRIs.
- Their effect on blood pressure can be worsened by taking them along with certain antidepressants, such as tricyclics.
- The most commonly prescribed antidepressant medications include the tricyclics and selective serotonin reuptake inhibitors.
- There are several new antidepressants which work in a different way from SSRIs and tricyclics.

Origin

Late 19th century: from tri- 'three' + Greek kuklos 'circle' + -ic.

Definition of tricyclic in US English:

tricyclic

adjectivetrīˈsīklik

Chemistry

(of an organic compound) having three fused rings of atoms in its molecule.
〔化〕（化合物）三环的
Example sentencesExamples
- In addition, all methyl sulfone containing compounds in the tricyclic class are very poorly bioavailable.
- Clomipramine was equal to desipramine and both tricyclic agents were superior to placebo for amelioration of hyperactivity.
- In addition to monocyclic shoots, there are also bicyclic ones, and on the branches in the canopy top there are even tricyclic vegetative shoots.
- Quinacrine is a planar tricyclic compound with structural similarities to DMMB, yet it does not absorb red light.
- The danger of precipitating mania is reported to be greatest with tricyclic agents.

nountrīˈsīklik

usually tricyclicsMedicine

Any of a class of antidepressant drugs having molecules with three fused rings.
〔医〕三环抗抑郁药物
Example sentencesExamples
- Their effect on blood pressure can be worsened by taking them along with certain antidepressants, such as tricyclics.
- However inspection of comparative studies in fall risk between SSRIs and tricyclics suggest these two antidepressant classes exhibit similar risks of fall.
- The most commonly prescribed antidepressant medications include the tricyclics and selective serotonin reuptake inhibitors.
- Over half of the prescriptions were for the class antidepressants known as tricyclics, while four out of 10 were for SSRIs.
- There are several new antidepressants which work in a different way from SSRIs and tricyclics.

Origin

Late 19th century: from tri- ‘three’ + Greek kuklos ‘circle’ + -ic.

词汇	tricyclic
释义	Definition of tricyclic in English: tricyclic adjective trʌɪˈsʌɪklɪktrīˈsīklik Chemistry (of a compound) having three rings of atoms in its molecule. 〔化〕（化合物）三环的 Example sentencesExamples In addition to monocyclic shoots, there are also bicyclic ones, and on the branches in the canopy top there are even tricyclic vegetative shoots. Quinacrine is a planar tricyclic compound with structural similarities to DMMB, yet it does not absorb red light. In addition, all methyl sulfone containing compounds in the tricyclic class are very poorly bioavailable. The danger of precipitating mania is reported to be greatest with tricyclic agents. Clomipramine was equal to desipramine and both tricyclic agents were superior to placebo for amelioration of hyperactivity. noun trʌɪˈsʌɪklɪktrīˈsīklik usually tricyclicsMedicine Any of a class of antidepressant drugs having molecules with three fused rings. 〔医〕三环抗抑郁药物 Example sentencesExamples However inspection of comparative studies in fall risk between SSRIs and tricyclics suggest these two antidepressant classes exhibit similar risks of fall. Over half of the prescriptions were for the class antidepressants known as tricyclics, while four out of 10 were for SSRIs. Their effect on blood pressure can be worsened by taking them along with certain antidepressants, such as tricyclics. The most commonly prescribed antidepressant medications include the tricyclics and selective serotonin reuptake inhibitors. There are several new antidepressants which work in a different way from SSRIs and tricyclics. Origin Late 19th century: from tri- 'three' + Greek kuklos 'circle' + -ic. Definition of tricyclic in US English: tricyclic adjectivetrīˈsīklik Chemistry (of an organic compound) having three fused rings of atoms in its molecule. 〔化〕（化合物）三环的 Example sentencesExamples In addition, all methyl sulfone containing compounds in the tricyclic class are very poorly bioavailable. Clomipramine was equal to desipramine and both tricyclic agents were superior to placebo for amelioration of hyperactivity. In addition to monocyclic shoots, there are also bicyclic ones, and on the branches in the canopy top there are even tricyclic vegetative shoots. Quinacrine is a planar tricyclic compound with structural similarities to DMMB, yet it does not absorb red light. The danger of precipitating mania is reported to be greatest with tricyclic agents. nountrīˈsīklik usually tricyclicsMedicine Any of a class of antidepressant drugs having molecules with three fused rings. 〔医〕三环抗抑郁药物 Example sentencesExamples Their effect on blood pressure can be worsened by taking them along with certain antidepressants, such as tricyclics. However inspection of comparative studies in fall risk between SSRIs and tricyclics suggest these two antidepressant classes exhibit similar risks of fall. The most commonly prescribed antidepressant medications include the tricyclics and selective serotonin reuptake inhibitors. Over half of the prescriptions were for the class antidepressants known as tricyclics, while four out of 10 were for SSRIs. There are several new antidepressants which work in a different way from SSRIs and tricyclics. Origin Late 19th century: from tri- ‘three’ + Greek kuklos ‘circle’ + -ic.
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