substitution groups
[/ˌsʌbstɪˈtuːʃən ɡruːps/]
nounpl: substitution groups
grupos de substituição
1. In chemistry, sets of atoms or functional groups that can replace each other in a molecule without significantly altering the core structure
The benzene ring has several substitution groups attached to it, including methyl and hydroxyl groups.
O anel de benzeno tem vários grupos de substituição ligados a ele, incluindo grupos metila e hidroxila.
2. In linguistics and grammar, categories of words or phrases that can be interchanged in the same syntactic position
Nouns and pronouns function as substitution groups in many sentence structures.
Substantivos e pronomes funcionam como grupos de substituição em muitas estruturas de frases.
3. In mathematics and formal language theory, sets of elements that can replace each other in expressions or formulas
The variables in these substitution groups follow the same algebraic rules.
As variáveis nesses grupos de substituição seguem as mesmas regras algébricas.
This is primarily a technical term used in scientific, mathematical, and linguistic education and research. It is not commonly used in everyday conversation in either Brazil or the USA, being confined to academic and professional contexts in chemistry, linguistics, and mathematics.
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