To ooze out of tissues; said of a semisolid or fluid.
The transfer of substances from inside a plant structure to its external surface or surrounding environment, typically by means of diffusion rather than through an opening, is referred to as ooze. While the verbs ‘ooze’ and ‘exude’ are largely interchangeable in everyday English, in the realm of plant pathology it can be advantageous to differentiate between the movement of substances through apertures of varying dimensions – microscopic or macroscopic – as ‘oozing’, and that through molecular-level apertures across the entire surface of a structure as ‘exudation’.