| automeris | (n) io moth, Syn. genus Automeris |
| io moth | (n) large yellow American moth having a large eyelike spot on each hind wing; the larvae have stinging spines, Syn. Automeris io |
| Tautomeric | a. (Chem.) Relating to, or characterized by, tautomerism. [ 1913 Webster ] |
| Tautomerism | n. [ Gr. &unr_;; &unr_;, for &unr_; &unr_; the same + &unr_; part. ] (Chem.) The condition, quality, or relation of metameric substances, or their respective derivatives, which are more or less interchangeable, according as one form or the other is the more stable. It is a special case of metamerism; thus, the lactam and the lactim compounds exhibit tautomerism. [ 1913 Webster ] |