A type of pale, translucent, or colorless fish, often found in deep water or caves where sunlight doesn't reach.
From 'ghost' (its pale, almost invisible appearance) + 'fish.' The term is descriptive rather than taxonomic, applied to various species like certain catfish and other deep-sea creatures.
Many deep-sea creatures look ghostly because they've lost the pigments that color their shallow-water cousins—in the pitch-black depths, color serves no purpose for camouflage, so evolution just made them transparent or white.
Complete word intelligence in one call. Free tier — 50 lookups/day.