Relating to steps, gradations, or progressive changes; or relating to depth in geological or oceanic contexts.
From Greek 'bathmos' (step or threshold) plus the adjectival suffix '-ic'. This technical term is used in various scientific fields to describe gradational phenomena.
Geologists love 'bathmic' because it describes how rock layers change gradually with depth—it's not a sudden shift but a slow, step-by-step transformation, like climbing down stairs into Earth's crust.
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