undissolvable substance
[/ˌʌndɪˈzɒlvəbəl ˈsʌbstəns/]
nounpl: undissolvable substances
substância indissolúvel
1. A material or compound that cannot be dissolved in a solvent, particularly in water or other common liquids
Sand is an undissolvable substance in water.
A areia é uma substância indissolúvel na água.
2. In chemistry, a solid that resists dissolution due to its chemical properties or molecular structure
Gold is an undissolvable substance in most acids.
O ouro é uma substância indissolúvel na maioria dos ácidos.
3. Figuratively, something that cannot be broken down or separated
Their bond was like an undissolvable substance.
A ligação deles era como uma substância indissolúvel.
This is primarily a scientific and technical term used in chemistry, physics, and materials science across both Brazil and the USA. It is not commonly used in everyday conversation. In Brazilian educational contexts, 'substância indissolúvel' is the standard terminology taught in chemistry classes at secondary and university levels. The concept is important in industrial applications, pharmaceuticals, and environmental science.
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