What is the meaning of Lobule?

diminutive of lobe:

  1. A small lobe; a subdivision of a lobe.
  2. In liverworts with bilobed leaves, the smaller of the two lobes, sometimes modified to form a sac.

A small lobe; a subdivision of a lobe.

In liverworts with bilobed leaves, the smaller of the two lobes, sometimes modified to form a sac.

Source: wiktionary.org