Because A, G, C, and T appear in the DNA, these molecules are called DNA-bases; A, G, C, and U are called RNA-bases. Uracil and thymine are identical except that uracil lacks the 5' methyl group. Adenine and guanine belong to the double-ringed class of molecules called purines (abbreviated as R).
Definition of decalcomania. 1  1 : the art or process of transferring pictures and designs from specially prepared paper (as to glass) 2  2 : decal.
transferable letter of credit. A letter of credit used by export brokers in which the rights and obligations of the beneficiary (the broker) may be transferred, in full or in part, to a third party for purposes of gaining access to a buyer's line of credit to be used for payment to a manufacturer.