Opaque.
Transparent materials.
The word for materials that do not allow light to pass through is "opaque." This means that the material is not transparent or translucent, resulting in the obstruction of light passing through it.
Transparent materials allow light to freely pass through them. Translucent materials also allow light to pass through them, but change the colour of the light.
OPAQUE is the word that describes an object or substance that blocks light (or other energy form). TRANSLUCENT describes objects that allow transmission of light, but scatter it from the original form or direction. TRANSPARENT describes objects that allow the passage of light, usually optically clear substances such as glass.
Materials such as glass, plastic, and water are examples of materials that can transmit light to some extent. These materials allow light to pass through them, which makes them translucent or transparent depending on how much light is able to pass through.
Opaque
In science, translucent describes a material that allows some light to pass through, but scatters it in different directions, making objects on the other side appear blurry or hazy. This is in contrast to transparent materials, which allow light to pass through with minimal scattering.
The word you're looking for is opaque.
AnswerI believe you're thinking about '''translucent.'''See the Related Link "Wikitionary:translucent" to the right for more information.or if your talking about a word that describes material that lets all light through it is transparent
The word you're looking for is "transparent." This term describes a substance that allows light to pass through without significant distortion or absorption.
magnetic
Light cannot travel through an opaque material. The word "opaque" simply means that a substance isn't transparent or translucent. So most everyday materials, like wood, plastic, iron, and people are all opaque.