Simple past tense and past participle of compact.(verb)
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Use "compacted" in a sentence
"By examining bubbles of air trapped in compacted snow, it is possible for researchers to glean details about past environmental conditions."
"Bubbles form in compacted glacial ice because the was air between the snow crystals that was trapped during compaction."
"Elderly or disabled people can enjoy the park due to the fact that it is connected by wide, flat walkways covered in compacted, small gravel, though the hanging bridges, which provide a nice adventurous feel at the entrance and hostel areas may be a challenge."