poor affinity

[/pʊr əˈfɪnɪti/]
noun phrasepl: poor affinities
baixa afinidade
1. A weak or limited chemical, biological, or interpersonal connection or attraction between two substances, organisms, or people
The enzyme showed poor affinity for the substrate, resulting in slower reaction rates.
A enzima mostrou baixa afinidade pelo substrato, resultando em taxas de reação mais lentas.
2. In biochemistry, a condition where a receptor has difficulty binding to its ligand with high strength
The drug demonstrated poor affinity for cancer cells, limiting its therapeutic effectiveness.
O fármaco demonstrou baixa afinidade pelas células cancerosas, limitando sua eficácia terapêutica.
3. A lack of natural compatibility or connection between people or groups
Despite working together for years, they had poor affinity and rarely collaborated on projects.
Apesar de trabalharem juntos por anos, eles tinham baixa afinidade e raramente colaboravam em projetos.
This term is predominantly used in scientific, medical, and biochemical contexts in both Brazilian Portuguese and American English. It is rarely used in casual conversation. In Brazil, it is frequently encountered in pharmaceutical research, molecular biology textbooks, and clinical settings. The concept is essential to understanding drug development and efficacy in both cultures.
Synonyms / Sinônimos
weak affinitylow affinitypoor bindinglimited affinityslight compatibility
Antonyms / Antônimos
high affinitystrong affinitygood affinitystrong bindingexcellent compatibility

Regional Variations

General Brazilian
baixa afinidade
Standard term used in scientific and technical contexts
Rio de Janeiro
baixa afinidade
Same usage as general Brazilian Portuguese
São Paulo
baixa afinidade
Commonly used in pharmaceutical and biotechnology industries
Portugal
fraca afinidade
Slightly different spelling preference, same meaning

Related Words

affinitybindingcompatibilityinteractionreceptorligandenzyme substrate

Related Idioms & Phrases

have little in common
not clicking
weak connection
lack chemistry
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