adjective🔗ShareSiliceux, silicatéOf, relating to, consisting of, or resembling silica or silicates."The desert soil was very siliceous, making it difficult for plants to grow without special adaptations. "Le sol du désert était très siliceux, ce qui rendait difficile la croissance des plantes sans adaptations particulières.materialsubstancegeologychemistryChat with AIVocabulary GamePractice Reading