IPA: /ˌɪn.təˈlɒb.jʊ.lər/
KK: /ɪnˈtɜr.lɒb.jʊ.lər/
Relating to or situated between small lobes or lobules in an organ or structure.
The interlobular ducts are important for transporting fluids between the lobules of the gland.
Interlobular is formed from "inter-" (meaning between) and "lobulus" (from Latin, meaning small lobe). The word describes something that is situated between small lobes.
Think of something that is 'between' ('inter-') 'small lobes' ('lobulus') — that's what interlobular means.