meteor swarm
— Noun
– English
～ a group of meteoroids with similar paths
Macaca sylvana
— Noun
– English
～ tailless macaque of rocky cliffs and forests of northwestern Africa and Gibraltar
Myosotis sylvatica
— Noun
– English
～ small biennial to perennial herb of Europe, northern Africa and western Asia having blue, purple or white flowers
Malva sylvestris
— Noun
– English
～ erect or decumbent Old World perennial with axillary clusters of rosy-purple flowers; introduced in United States
Malus sylvestris
— Noun
– English
～ wild crab apple native to Europe; a chief ancestor of cultivated apples
mathematical symbol
— Noun
– English
～ a character that is used to indicates a mathematical relation or operation
mirror symmetry
— Noun
– English
～ (physics) parity is conserved in a universe in which the laws of physics are the same in a right-handed system of coordinates as in a left-handed system
malabsorption syndrome
— Noun
– English
～ a pattern of symptoms including loss of appetite and bloating and weight loss and muscle pain and steatorrhea; associated with celiac disease and sprue and cystic fibrosis
Marfan's syndrome
— Noun
– English
～ an autosomal dominant disease characterized by elongated bones (especially of limbs and digits) and abnormalities of the eyes and circulatory system
Munchausen's syndrome
— Noun
– English
～ syndrome consisting of feigning acute and dramatic illness for which no clinical evidence is ever found
mucocutaneous lymph node syndrome
— Noun
– English
～ an acute disease of young children characterized by a rash and swollen lymph nodes and fever; of unknown cause
Munchausen syndrome
— Noun
– English
～ syndrome consisting of feigning acute and dramatic illness for which no clinical evidence is ever found
myasthenic syndrome
— Noun
– English
～ a disease seen in patients with lung cancer and characterized by weakness and fatigue of hip and thigh muscles and an aching back; caused by antibodies directed against the neuromuscular junctions
mental synthesis
— Noun
– English
～ the creation of a construct; the process of combining ideas into a congruous object of thought
maple syrup
— Noun
– English
～ made by concentrating sap from sugar maples
merit system
— Noun
– English
～ the system of employing and promoting civil servants on the basis of ability