A dull surface will absorb infrared best, but it needs to be dull at infrared wavelengths. Do not judge the infrared behavior by the visible performance.
One homograph for "dull" is "dull." In this context, "dull" can refer to the lack of sharpness or brightness, as in a dull knife or a dull color. "Dull" can also mean lacking interest or excitement, as in a dull movie or a dull conversation.
The adjective dull has the adverb form dully. It can mean in a dull way, or sluggishly, or in an obtuse manner.
Do you mean "to dull your pain" or do you mean "I have a dull pain in my arm"? "I have a dull pain in my arm" means that the pain is like an ache. A sharp pain almost feels like a stab of pain through a part or parts of your body. It could also mean that your pain has faded. "to dull your pain" Could mean to distract you from your pain or take medicine such as pain killers to make the pain less noticible to you.
refinement
Constantly uninteresting
It is a dull heavy sound.
dwl, hurt; marwaidd; diflas; cymylog; pwl all mean dull.
the light I'd dull because led is very dull and not shiny!!
drab means dull and uninteresting so don't ever be dull and not fun to play with.;)
something
Dull language refers to writing or communication that lacks color, interest, or liveliness. It often results from using bland or repetitive words, phrases, or tones that fail to engage or captivate the audience.