Acclimatization (n.)
definition: The act of acclimatizing; the process of inuring to a new climate
Or the state of being so inured.
Acclimatization is a 15 letter word that begins with an A and ends in an N

Achromatization (n.)
definition: The act or process of achromatizing.

Achromatization is a 15 letter word that begins with an A and ends in an N

Acupuncturation (n.)
definition: See Acupuncture.

Acupuncturation is a 15 letter word that begins with an A and ends in an N

Adsignification (n.)
definition: Additional signification.

Adsignification is a 15 letter word that begins with an A and ends in an N

Americanization (n.)
definition: The process of Americanizing.

Americanization is a 15 letter word that begins with an A and ends in an N

Antiphlogistian (n.)
definition: An opposer of the theory of phlogiston.

Antiphlogistian is a 15 letter word that begins with an A and ends in an N

Antisabbatarian (n.)
definition: One of a sect which opposes the observance of the Christian Sabbath.

Antisabbatarian is a 15 letter word that begins with an A and ends in an N

Antivaccination (n.)
definition: Opposition to vaccination.

Antivaccination is a 15 letter word that begins with an A and ends in an N

Antivivisection (n.)
definition: Opposition to vivisection.

Antivivisection is a 15 letter word that begins with an A and ends in an N

Appropinquation (n.)
definition: A drawing nigh; approach.

Appropinquation is a 15 letter word that begins with an A and ends in an N

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