Home › S › subunitMeaningssubunit/ˈsʌbjuːnɪt/nounउच्चारण सब्यूनिटउप-इकाईAdvanced wordnoun1[C] a unit that is part of a larger unitउप-इकाईEach department is divided into smaller subunits.Haemoglobin is made up of four protein subunits.Synonyms component section division← subtropicssuburb →