noun🔗ShareCobaltoA chemical element (symbol Co) with an atomic number of 27: a hard, lustrous, silver-gray metal."The artist used cobalt to create a vibrant blue pigment for her painting. "La artista usó cobalto para crear un pigmento azul vibrante para su pintura.elementmaterialsubstancechemistryChat with AIVocabulary GamePractice Reading
noun🔗ShareAzul cobaltoCobalt blue."The artist used cobalt to paint the ocean a deep, vivid blue. "El artista usó azul cobalto para pintar el océano de un azul profundo y vívido.colormaterialChat with AIVocabulary GamePractice Reading
