Sure! Let's break down the word "atrophy" in a way that is easy to understand.
Atrophy is a noun and a verb. It refers to the weakening or shrinking of a body part, especially muscles or organs, usually because they are not being used.
In a broader sense, "atrophy" can also refer to the decline or decrease of skills, abilities, or even institutions due to neglect or lack of activity.
While "atrophy" primarily refers to physical weakening or decline, it can also be used metaphorically to describe a decline in non-physical things such as skills or interests.
There aren't specific idioms or phrasal verbs that use "atrophy," but you can use phrases that convey similar ideas, such as: - "Fall into disuse," which can imply that something is not being used and may weaken as a result. - "Let slip," which can refer to allowing a skill to decline through lack of practice.
Remember, "atrophy" is about weakening or shrinking due to lack of use. You can apply it to muscles, skills, or even ideas.