…with opposite surfaces or sides that are close or relatively close together…
…used to refer to the state of being invisible or non-existent…
…(of a process or device) using or involving a very thin solid or liquid film…
…be gradually used up or become less convincing or acceptable…
…a thin, flat piece of material prepared for examination with a microscope, in particular a piece of rock about 0.03 mm thick, or, for electron microscopy, a piece of tissue about 30 nm thick…
…be insensitive (or oversensitive) to criticism or insults…
…used to refer to the police, typically in the context of maintaining order during unrest…
…chromatography in which compounds are separated on a thin layer of adsorbent material, typically a coating of silica gel on a glass plate or plastic sheet…
…exist in large (or small) numbers or amounts…
…be involved in so many different activities that one’s time and energy are not used to good effect…
…under all circumstances, no matter how difficult…
…an action or procedure of little importance that is likely to lead to more serious developments…
…prepare (something) for examination with a microscope by taking a thin section…
