What is an underwater mountain called?

If it sticks up above sea level, then it’s called “an island”. If it’s below sea level but in a depth of water that means it can be struck by floating vessels, then it’s called “a rock”.

Normally, I suppose it would be a—something else that you’re probably supposed to look up on your own.

Google is a powerful resource.
However I have found; -Subduction Zones or Sea mounts.

@CyanoticWasp There are mountains underwater, in fact the longest mountain range in the world is underwater. Just like there are underwater volcanoes, and valleys; i.e. Trenches

@joeysefika I know. I just didn’t want to do a homework assignment, but I didn’t want to ignore the Q, either.

Rosie O’ Donnell scuba diving?

@ucme that would be “Moby” O’Donnell.

@CyanoticWasp Or Mount Rosie.Wow what a hideous thought.No thanks.

What’s all this about Rosie O’Donnell? She’s tedious, but she’s not that big.

What is an underwater horse called?

A seahorse!

@susanc she’s a huge bore.

@erichw1504 The poor creatures almost drown playing water polo.

I’ve always heard single mountains referred to as simply underwater mountains. However, if it is an entire underwater mountain range, then it might be referred to as a Mid-ocean ridge.

@jeffgoldblumsprivatefacilities wouldn’t it also have to be in the middle, in that case? You seem to be adding conditions or specification that the OP never intended.

@CyanoticWasp I would assume that yes, it would have to be located in the middle of the ocean. I’m just throwing out possibilities here, the OP wasn’t that specific.

And I think I’m being significantly more helpful than all the – Moby/Rosie O’Donnell talk.

The mariana trench springs to mind.Outstanding example of natures awesome vistas.

It’s called a seamount. I know there’s a chain of underwater mountains called the Emperor Seamounts.

It also happens to be a last name in my family (cousins). Weird.

http://en.wikipedia.org/wiki/Seamount

@CyanoticWasp – yes, I think so too – but people aren’t saying “she’s so boring she lives under the ocean”, they’re saying “she’s as big as a mountain”.
Fat ladies unite.

Many of them are called volcanoes

The Lonemonk underwater with a boner.

@TheLoneMonk A bit of a damp squib then.

Sometimes they are called ATOLLS