Definition of geminal in English:

geminal

adjectiveˈdʒɛmɪn(ə)lˈjemənl

Chemistry

Denoting substituent atoms or groups, especially protons, attached to the same atom in a molecule.
〔化〕成对的，孪位的
Example sentencesExamples
- Particularly in the pathological examination, we discovered that it could activate and proliferate cells in lymph follicles, geminal centre, paracortical zone and medullary cord of lymph nodes.
- The fellow doing it was down the hall from me in graduate school, and he was doing an obscure reaction which forms a geminal dinitrile, which themselves are rather obscure compounds.
- Compounds in which two hydroxyl groups are attached to the same carbon atom (geminal diols) normally cannot be isolated.
- This showed a reactive lymph node with prominent geminal centres and focal areas in keeping with necrotising granulomata.

Derivatives

geminally

adverb

Chemistry

One of these involves the properties of amides that are geminally substituted at nitrogen with two heteroatoms, so-called ‘Anomeric Amides’.
Example sentencesExamples
- However, fluoro-amino acid derivatives have rarely been synthesized because of the inherent instability of the geminally halogenated amine moiety.
- Although the anomeric effect was originally identified in pyranoid rings, its relevance to conformational analysis of geminally hetero-atom substituted carbon chains was immediately obvious.

Origin

1960s: from Latin geminus 'twin' + -al.

Definition of geminal in US English:

geminal

adjectiveˈjemənl

Chemistry

Denoting substituent atoms or groups, especially protons, attached to the same atom in a molecule.
〔化〕成对的，孪位的
Example sentencesExamples
- The fellow doing it was down the hall from me in graduate school, and he was doing an obscure reaction which forms a geminal dinitrile, which themselves are rather obscure compounds.
- Compounds in which two hydroxyl groups are attached to the same carbon atom (geminal diols) normally cannot be isolated.
- Particularly in the pathological examination, we discovered that it could activate and proliferate cells in lymph follicles, geminal centre, paracortical zone and medullary cord of lymph nodes.
- This showed a reactive lymph node with prominent geminal centres and focal areas in keeping with necrotising granulomata.

Origin

1960s: from Latin geminus ‘twin’ + -al.

词汇	geminal
释义	Definition of geminal in English: geminal adjectiveˈdʒɛmɪn(ə)lˈjemənl Chemistry Denoting substituent atoms or groups, especially protons, attached to the same atom in a molecule. 〔化〕成对的，孪位的 Example sentencesExamples Particularly in the pathological examination, we discovered that it could activate and proliferate cells in lymph follicles, geminal centre, paracortical zone and medullary cord of lymph nodes. The fellow doing it was down the hall from me in graduate school, and he was doing an obscure reaction which forms a geminal dinitrile, which themselves are rather obscure compounds. Compounds in which two hydroxyl groups are attached to the same carbon atom (geminal diols) normally cannot be isolated. This showed a reactive lymph node with prominent geminal centres and focal areas in keeping with necrotising granulomata. Derivatives geminally adverb Chemistry One of these involves the properties of amides that are geminally substituted at nitrogen with two heteroatoms, so-called ‘Anomeric Amides’. Example sentencesExamples However, fluoro-amino acid derivatives have rarely been synthesized because of the inherent instability of the geminally halogenated amine moiety. Although the anomeric effect was originally identified in pyranoid rings, its relevance to conformational analysis of geminally hetero-atom substituted carbon chains was immediately obvious. Origin 1960s: from Latin geminus 'twin' + -al. Definition of geminal in US English: geminal adjectiveˈjemənl Chemistry Denoting substituent atoms or groups, especially protons, attached to the same atom in a molecule. 〔化〕成对的，孪位的 Example sentencesExamples The fellow doing it was down the hall from me in graduate school, and he was doing an obscure reaction which forms a geminal dinitrile, which themselves are rather obscure compounds. Compounds in which two hydroxyl groups are attached to the same carbon atom (geminal diols) normally cannot be isolated. Particularly in the pathological examination, we discovered that it could activate and proliferate cells in lymph follicles, geminal centre, paracortical zone and medullary cord of lymph nodes. This showed a reactive lymph node with prominent geminal centres and focal areas in keeping with necrotising granulomata. Origin 1960s: from Latin geminus ‘twin’ + -al.
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