An organism, particularly a fish like salmon, that migrates from saltwater to freshwater to spawn.
From Greek ana- (up) + dromos (running), literally 'running upward.' This biological term describes the characteristic upstream migration of certain fish species.
Salmon are the ultimate immigrants—they're born in freshwater rivers, travel thousands of miles through the ocean to grow huge, then spend their last bit of energy swimming back upstream to where they were born, often without eating anything. That's the 'ana-' (up/back) + 'drom' (running) meaning in action!
Complete word intelligence in one call. Free tier — 50 lookups/day.