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There are 2 eighteen-letter words ending with TRIENONE

cycloheptatrienonemegastigmatrienone

2 definitions found

  • cycloheptatrienone — n. (Organic chemistry) The pseudoaromatic alicyclic ketone having…
  • megastigmatrienone — n. A carotenoid-derived aromatic compound that produces some of…
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