• 1. having a related or similar position, structure, etc
• 2. (of a series of organic compounds) having similar characteristics and structure but differing by a number of CH 2 groups
• 3. (of two or more tissues) identical in structure
• 4. (of a vaccine) prepared from the infecting microorganism
• 5. (of organs and parts) having the same evolutionary origin but different functions - Compare analogous
• 6. (of elements) playing a similar role in distinct figures or functions

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