Definition of senesce in English:

senesce

verb

[NO OBJECT]Biology
  • (of a living organism) deteriorate with age.

    • ‘Fruits were counted when the plants had fully senesced.’
    • ‘Evolutionary senescence theory argues that organisms senesce because the power of natural selection decreases with age.’
    • ‘In several populations, the pitchers of some plants had senesced.’
    • ‘After the plants had senesced, ears were harvested and the lengths measured.’
    • ‘Regardless of cold-induction treatment, leaves and plants of non-transformed plants senesced under prolonged dark storage.’

Origin

Mid 17th century: from Latin senescere, from senex ‘old’.

Pronunciation

senesce

/səˈnes/