An irrational fear of dikes, levees, or embankments, or sometimes a fear of water management systems.
From 'dike' + Greek 'phobos' (fear), following the standard pattern for phobia words. This is a rare technical term that emerged in psychology, though it may have had historical relevance in flood-prone regions.
In medieval Holland, you couldn't afford dikephobia—your life literally depended on trusting these structures, so collective mental resilience about dike safety was a cultural survival skill!
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