IPA: /sɪˈnɛsənt/
KK: /səˈnɛsənt/
Describing something that is growing old or showing signs of aging.
The senescent tree had fewer leaves than it did in its youth.
Senescent → It is formed from "senescere" (meaning to grow old) and the suffix "-ent" (indicating an ongoing action or state). The word "senescent" describes the process of growing old or aging.
Think of the root 'senescere' which means to grow old, and remember that 'senescent' refers to the state of aging.