This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. A small lobe.

n. A section or subdivision of a lobe.

n. A small lobe; a subdivision of a lobe.

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

n. A small lobe; a subdivision of a lobe.

n. A little lobe; especially, one of the lesser divisions of the surface of the brain; a gyrus or convolution of the cerebrum, or a cluster of such gyri, of which there are several in each lobe, separated from one another by those lesser sulci or fissures which are called intralobular.

n. A terminal bronchus, with the air-cells, vessels, and nerves related to it.

n. In botany, same as disculus

n. a small lobe or subdivision of a lobe

"The lobule is the smallest division of the lung and is formed by capillary bronchial tubes, air cells and blood-vessels."

lobe   

fusiform lobule    petrosal lobule    lingual lobule    hippocampal lobule    pneumogastric lobule    cuneate lobule    lobule of the ear    paracentral lobule    lobule of the corpus striatum   

colliculus    operculum    macron    turbinate    pericardium    pleura    understrapper    maxilla    pangeran    subjacent