Adjectives

(a)morphologic, morphological, structuralrelating to or concerned with the morphology of plants and animals“morphological differences”
(a)morphologic, morphologicalrelating to or concerned with the formation of admissible words in a language
(a)geomorphologic, geomorphological, morphologic, morphological, structuralpertaining to geological structure“geomorphological features of the Black Hills”, “morphological features of granite”, “structural effects of folding and faulting of the earth's surface”