Home | Aging-Related Terms Glossary | Atrophy A B C D E F G H I J K L M N O P Q R S T U v W X Y Z Home | Aging-Related Terms Glossary | Atrophy Atrophy The wasting away or decrease in size of body tissue, often due to lack of use or disease. Stay Up to Date on the Latest in Age Wise TrendsJoin our community and gain insights that empower you and your loved ones on this journey.contact us