The importance of the trilobate form of the trilobite is very much overestimated.
The nose is often twisted in epileptics, flattened and trilobate in cretins.
The trilobate roof of the nave was medival, but has lately been restored.
Just behind the mandibles are the maxillæ, which are trilobate at the end, as in the three orders of insects above named.
trilobate tri·lo·bate (trī-lō'bāt') or tri·lo·bat·ed (-bā'tĭd) or tri·lobed (trī'lōbd')
Having three lobes.