noun🔗ShareSilica based glass extruded into fibers that possess a length at least 1000 times greater than their width."The new school building's exterior walls were made of fiberglass, providing excellent insulation. "materialsubstanceChat with AIVocabulary GamePractice Reading
noun🔗ShareEllipsis of fibreglass wool"The insulation in the attic was made of fiberglass. "materialsubstanceChat with AIVocabulary GamePractice Reading
noun🔗ShareA composite material made from fine fibres of spun glass held together with resin."The boat's hull was made of fiberglass, making it light and strong. "materialcompoundChat with AIVocabulary GamePractice Reading
verb🔗ShareTo apply fibreglass to."to fibreglass the hull of a fishing-boat"materialtechnologyindustryChat with AIVocabulary GamePractice Reading