amidine: meaning, definition, pronunciation and examples

Very Rare / Technical
UK/ˈæm.ɪ.diːn/US/ˈæm.ɪ.diːn/

Formal / Scientific / Academic (Chemistry)

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Quick answer

What does “amidine” mean?

A specific class of organic chemical compounds containing the functional group RC(=NR')NR''.

Audio

Pronunciation

Definition

Meaning and Definition

A specific class of organic chemical compounds containing the functional group RC(=NR')NR''.

In chemistry, any derivative of an oxoacid where an oxygen atom is replaced by an =NR group. More specifically, it is a nitrogen-containing compound often formed by the addition of ammonia to a nitrile and serving as a base in chemical reactions.

Dialectal Variation

British vs American Usage

Differences

No significant lexical or orthographic differences. Pronunciation may vary slightly (see IPA).

Connotations

None beyond the strict scientific definition.

Frequency

Extremely rare outside academic chemistry texts or research papers in both varieties.

Grammar

How to Use “amidine” in a Sentence

The [nitrile] was converted to the corresponding [amidine].The [reaction] proceeds via an [amidine] intermediate.

Vocabulary

Collocations

strong
benzamidineacetamidineamidine hydrochloridecyclic amidine
medium
amidine derivativessynthesis of amidineamidine groupamidine base
weak
substituted amidinereaction with amidinestructure of the amidine

Examples

Examples of “amidine” in a Sentence

adjective

British English

  • The amidine functional group was characterised by NMR.
  • We observed amidine formation under these conditions.

American English

  • The amidine functional group was characterized by NMR.
  • We observed amidine formation under these conditions.

Usage

Meaning in Context

Business

Not used.

Academic

Used strictly in advanced chemistry publications, lectures, and laboratory discussions.

Everyday

Never used.

Technical

The primary domain of use. Found in organic chemistry research, patents, and chemical engineering contexts.

Vocabulary

Synonyms of “amidine”

Strong

guanidine (structurally related but distinct compound)

Neutral

N/A (highly specific term)

Weak

nitrogen baseamine derivative

Vocabulary

Antonyms of “amidine”

N/A (scientific term lacking direct opposites)

Watch out

Common Mistakes When Using “amidine”

  • Misspelling as 'amidine' (correct) vs. 'amidin' (incorrect).
  • Confusing 'amidine' with the more common 'amine' or 'amide'.

FAQ

Frequently Asked Questions

No, it is a highly specialised term used only in academic and industrial chemistry.

No, it functions exclusively as a noun (and adjectivally to describe other nouns, e.g., 'amidine group').

An amide has a carbonyl group (C=O) bonded to nitrogen (RC(=O)NR'R''). An amidine has an imine group (C=NR) bonded to a second nitrogen atom (RC(=NR')NR''R''').

Only comprehensive or specialised dictionaries (e.g., scientific or chemical dictionaries) would include it. It would not appear in a standard learner's dictionary.

A specific class of organic chemical compounds containing the functional group RC(=NR')NR''.

Amidine is usually formal / scientific / academic (chemistry) in register.

Amidine: in British English it is pronounced /ˈæm.ɪ.diːn/, and in American English it is pronounced /ˈæm.ɪ.diːn/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • N/A

Learning

Memory Aids

Mnemonic

Think 'amid' + 'ine' – Amid the nitrogen atoms (N) in the chemical structure, you find the 'ine' ending common to many organic bases like amine.

Conceptual Metaphor

N/A. The term is purely denotative.

Practice

Quiz

Fill in the gap
The reaction mechanism proposed involves the nucleophilic attack of ammonia on the nitrile, resulting in the formation of an intermediate.
Multiple Choice

In which field is the term 'amidine' exclusively used?