Marfan syndrome (also called Marfan's syndrome) is a genetic disorder of connective tissue. It has a variable clinical presentation, ranging from mild to severe systemic disease. The most serious manifestations involve defects of the heart valves and aorta, which may lead to early death if not properly managed.
noun. 1  a big deal. 2  See more words with the same meaning: exclamations (list of) . 3  See more words with the same meaning: unimportant, useless.
uk â /ÊnËsel.fÉªÊ/ us â /ÊnËsel.fÉªÊ/. âº An unselfish person thinks about what is good for other people, not just about their own advantage. Thesaurus: synonyms and related words. Virtue and moral good. altruism. angel. angelic. be as pure as the driven snow idiom. be on the side of the angels idiom.