| MELAS | a tan discoloration of a woman's face that is associated with pregnancy or with the use of oral contraceptives |
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| MELAS | type genus of Melastomataceae |
| MELAS | evergreen spreading shrub of India and southeastern Asia having large purple flowers |
| MELAS | a family of trees and bushes and herbs of order Myrtales |
| MELAS | a family of trees and bushes and herbs of order Myrtales |