declining function
noun phraseUK /dɪˈklaɪnɪŋ ˈfʌŋkʃən/
US /dɪˈklaɪnɪŋ ˈfʌŋkʃən/
A declining function is when something gets smaller or weaker as time goes on.
The doctor watched the declining function of the old machine to see when it would stop.
RELATED WORDS
OTHER MEANINGS
2. In math, a function whose output gets smaller as its input gets bigger.
On the graph, the declining function slopes downward from left to right.
3. A job or role that is becoming less important or less common over time.
Being a town crier became a declining function after newspapers arrived.
4. The gradual loss of how well a body part or system works.
Regular exercise can slow the declining function of aging muscles.