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1. Capable of existing or performing in harmonious, agreeable, or congenial combination with another or others: compatible family relationships.
2. Capable of orderly, efficient integration and operation with other elements in a system with no modification or conversion required.
3. Capable of forming a chemically or biochemically stable system.
4. Medicine Capable of being grafted, transfused, or transplanted from one individual to another without rejection: compatible blood.
A device, such as a computer or computer software, that can be integrated into or used with another device or system of its type.
[Middle English, from Medieval Latin compatībilis, from Late Latin compatī, to sympathize; see compassion.]
com·pat′i·bil′i·ty, com·pat′i·ble·ness n.