Definition of guttation in English:



mass noun
  • The secretion of droplets of water from the pores of plants.

    • ‘When pressure was applied to the soil/root system of the intact maize plants, guttation appeared at the leaf margins and indicated that the potential X had been raised, confirming the observations of Passioura.’
    • ‘Shoot-synthesized CKs, as well as cytokinins which are released at the hydathodes by guttation and are reabsorbed into the phloem, can be transported through the phloem in the root direction.’
    • ‘The exit of this xylem water, termed guttation, results in the formation of small droplets in the vicinity of the hydathodes.’
    • ‘The classic example of guttation is droplets at the tip of grass leaves in the morning.’
    • ‘Following these methods will spread the concentrated dew or guttation over a larger surface area, causing the turf canopy to dry faster.’
    • ‘These infections are usually triggered by guttation, or where leaves at the top of the canopy are exposed to dripping water from condensation or roof sprinklers.’
    • ‘Many plants undergo a process of guttation at night to force out drops of excess water through special pores on their leaf edges and tips.’
    • ‘Increasing air circulation and lowering humidity will help in controlling guttation as well.’
    • ‘Guttation appears as a single large pendant drop at the tip of the blade; guttation forms by the extrusion of liquid water from the moist ground.…’


Late 19th century: from Latin gutta ‘drop’ + -ation.