materia opaca
opaque matter
The Spanish term 'materia opaca' translates to 'opaque matter' in English. It is a term used in physics and physical sciences to describe substances that do not transmit light or other forms of radiation. 'Opaque' stems from the Latin 'opacus' and it refers to the inability to see through, blocking out or absorbing light. 'Matter' refers to the physical substance in general that occupies space and possesses mass. Thus 'materia opaca' can be anything from a solid object to a dense cloud of dust or gas in space that blocks light.
Example sentences using: materia opaca
La materia opaca es difícil de estudiar en astronomía
Opaque material is difficult to study in astronomy
This example sentence is talking about the challenges of studying opaque material in the field of astronomy. In astronomy, a material is considered opaque if it does not let light pass through. The term can refer to celestial bodies such as stars and planets, or phenomena such as nebulae or black holes.
El vidrio no es una materia opaca, permite la entrada de luz.
Glass is not an opaque material, it allows light to enter.
The sentence describes the properties of glass as a material. Here, it is pointed out that glass is not opaque, meaning it does not block light but allows it to pass through. This is a typical property of transparent materials, of which glass is a common example.
El hierro es una materia opaca que se utiliza en la construcción.
Iron is an opaque material that is used in construction.
The example describes iron as an opaque material used in construction. The term opaque here refers to the fact that iron does not allow light to pass through it. The use of iron in construction is widespread due to its strength and durability.