noun🔗ShareThe act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated."High concentrations of pollen in the air can cause allergy symptoms. "abilityprocessmindphysiologyChat with AIVocabulary GamePractice Reading
noun🔗ShareA field or course of study on which one focuses, especially as a student in a college or university.""At university, she chose two concentrations: biology and chemistry." "educationChat with AIVocabulary GamePractice Reading
noun🔗ShareThe proportion of a substance in a whole."The doctor checked the patient's blood to measure the concentrations of different vitamins and minerals. "substancechemistryamountChat with AIVocabulary GamePractice Reading
noun🔗ShareThe matching game pelmanism."The children's matching game required careful concentrations to find the pairs. "gameentertainmentChat with AIVocabulary GamePractice Reading