The word 'compress' is the opposite of 'expand'.
An antonym for compress is expand. This means to make something larger or more spread out instead of making it smaller or more compact.
The opposite of compression force is tension force. Compression force acts to compress or squeeze an object, while tension force acts to stretch or pull an object in opposite directions.
The fastest waves that compress and expand the ground like an accordion are primary waves (P-waves). These seismic waves are the first to arrive after an earthquake and travel through solids, liquids, and gases. They cause particles in the ground to move in the same direction as the wave itself, resulting in the compressional and expansion effects.
Steel expands when heated because the heat causes the atoms within the steel to vibrate more, increasing the spacing between them. This expansion can be measured in terms of thermal expansion coefficients.
The opposite of the adjective compact (compressed) would be uncondensed, or uncompressed.The opposite of to compact would be to decompress, expand, or loosen.*A common modern use of the term is synonymous with a smaller size, where the opposite would be large, bulky, or unwieldy.
uncompress, expand, extend, stretch, increase
The opposite of expand is contract (in some uses, to shrink).For expand (increase), the opposite can be reduce or decrease.For expand (widen), the opposite would be to narrow.For expand (inflate) the opposite would be to deflate.
the P wave
The opposite of expand is contract (in some uses, to shrink).For expand (increase), the opposite can be reduce or decrease.For expand (widen), the opposite would be to narrow.For expand (inflate) the opposite would be to deflate.
Longitudinal waves.
The opposite of deflate is inflate, or expand.
An antonym for compress is expand. This means to make something larger or more spread out instead of making it smaller or more compact.
"EXPAND"
Try exerting pressure while turning clockwise to retract
Because they have to move to let your lungs expand and compress as you breathe in and out.
P Waves
P waves