🌐EnglishEnglishDeutschEspañolFrançaisالعربيةفارسی中文日本語EntityQ911348· pop 11· linked from 21 articlesdensity anomalyAlso known as negative thermal expansion, NTEunusual physicochemical process in which some materials contract upon heatingAvailable in 11 languagesEspañolFrançaisDeutsch日本語العربيةCroatianEsperantoGreekSlovakفارسیConnectionsthermal expansionEntitywaterEntityCategoriesMaterials sciencePhysical chemistryThermodynamics