Late 19th century; earliest use found in Isaac Funk (1839–1912), publisher and reformer. From multi- + lobar. Compare earlier unilobar and multilobate, multilobed.
Definition of multilobar in US English:
multilobar
adjectiveˌmʌltɪˈləʊbə
Biology Medicine
1= multilobate.
2Involving or affecting several or many lobes.
Origin
Late 19th century; earliest use found in Isaac Funk (1839–1912), publisher and reformer. From multi- + lobar. Compare earlier unilobar and multilobate, multilobed.