anadromous
/əˈnadrəməs
/adjective Zoology
(Of a fish such as the salmon) migrating up rivers from the sea to spawn. The opposite of catadromous.Pacific salmon are anadromous (sea-run) fish that migrate from freshwater to the ocean and then back to freshwater to spawn....
- Unlike lampreys, salmon, and other anadromous fish, which migrate from the ocean to fresh water to breed, eels head in the opposite direction.
- Chinook Salmon are anadromous, making great migrations out to the deepest parts of the ocean and returning as mature adults to their natal streams.
Origin
Mid 18th century: from Greek anadromos (from ana- 'up' + dromos 'running') + -ous.
- upthrust
- uptick
- uptight
- uptime
- up to
- up to a point
- up to date
- up to eleven
- up to mud
- up to no good
- up to one's armpits
- up to one's ears in
- up to one's elbows in
- up to one's neck in
- up to one's (old) tricks
- up top
- up to par
- up to putty
- up to scratch
- up to snuff
- up to speed
- (up) to the hilt
- up to the mark
- up to the minute
- up to the (or one's) eyeballs