معنی کلمه :‌ epenthesis

The insertion of a letter or a sound in the body of a word; as, the b in "nimble" from AS. n/mol.

Any one of a certain series of basic compounds containing a chain of four nitrogen atoms; for example, ethyl tetrazone, (C2H5)2N.N2.N(C2H5)2, a colorless liquid having an odor of leeks.