metameric
Webster's Unabridged Dictionary:
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Met·a·mer·ic
a.
1. (Chem.) Having the same molecular formula, but possessing a different bonding structure and different properties; as, methyl ether and ethyl alcohol are metameric compounds. See Isomeric.
Note: The existence of metameric compounds is due to different arrangements of the same atoms in the molecule.
2. (Biol.) Of or pertaining to a metamere or its formation; as, metameric segmentation.
