1) Articulation 2) Nasalisation 3) The act of nasalizing 1) Nasalisation 
In phonetics, nasalization (or nasalisation) is the production of a sound while the velum is lowered, so that some air escapes through the nose during the production of the sound by the mouth. An archetypal nasal sound is [n]. In the International Phonetic Alphabet, nasalization is indicated by printing a tilde diacritic {unichar|0303|COMBINING TI...
• (n.) The act of nasalizing, or the state of being nasalized. • (n.) The act of nasalizing, or the state of being nasalized.
Na`sal·i·za'tion noun The act of nasalizing, or the state of being nasalized. 
[n] - the act of nasalizing
nasalisation noun the act of nasalizing; the utterance of sounds modulated by the nasal resonators