abscission
UK[əbˈsɪʒ.ən]US[æbˈsɪʒ.ən]
n
the natural separation of flowers, fruit, or leaves from plants as part of growth.
n
the act of cutting something off; the state of being cut off.
Morpheme Breakdown
abs
ciss
ion
abs
away, off
ciss
to cut
ion
Etymology
the word 'abscission' originates from latin 'abscissio', which is derived from the verb 'abscindere', meaning 'to cut off'. this verb itself is a compound of the prefix 'abs-' (away) and 'scindere' (to cut, split). the core root can be traced further back to the proto-indo-european root skei̯d-, meaning 'to split, to cut'. the modern english term retains this literal sense of cutting off, applying it specifically in botanical contexts to describe the natural, clean detachment of plant parts, as well as in general use for any act of severance.
Analysis
Structure: abs + ciss + ion
abs- (latin prefix, meaning 'away, off'), -ciss- (from latin verb 'caedere', meaning 'to cut'), -ion (latin suffix, forming nouns of action or state)
Examples
leaf abscission is triggered by shorter days and cooler temperatures in autumn.
the surgical abscission of the tumor was successful.
the abscission layer forms at the base of the petiole, allowing the leaf to fall without causing damage to the stem.