1) Articulation 
In phonology, epenthesis (s; ἐπένθεσις) means the addition of one or more sounds to a word, especially to the interior of a word. The word epenthesis comes from epi `on` and en `in` and thesis `putting.` Epenthesis may be divided into two types: excrescence, for the addition of a consonant, and anaptyxis (s; from ἀνάπτυξι
insertion of extra sound into a word
• (n.) The insertion of a letter or a sound in the body of a word; as, the b in `nimble` from AS. n/mol.
(also called infixation) Adding an extra syllable or letters in the middle of a word. Shakespeare mi
E·pen'the·sis noun ; plural Epentheses . [ Latin , from Greek ...; 
epenthesis is the process of adding vowels to make possible syllables out of impossible consonant sequences, for example Rawanda for Ruanda
[n] - the insertion of a vowel or consonant into a word to make its pronunciation easier
noun the insertion of a vowel or consonant into a word to make its pronunciation easier; `the insertion of a vowel in the plural of the word `bush` is epenthesis`