isthmus

As a noun isthmus

is a narrow strip of land, bordered on both sides by water, and connecting two larger landmasses.

As a verb tombolo is

.

As a proper noun channel

is (by ellipsis) the english channel.

As a noun isthmus is

a narrow strip of land, bordered on both sides by water, and connecting two larger landmasses.

As nouns the difference between islet and isthmus

is that islet is a small island while isthmus is a narrow strip of land, bordered on both sides by water, and connecting two larger landmasses.

As nouns the difference between isthmus and halocline

is that isthmus is a narrow strip of land, bordered on both sides by water, and connecting two larger landmasses while halocline is a strong, vertical salinity gradient; the (sometimes indistinct) border between layers of water that contain different amounts of salt.

As nouns the difference between islands and isthmus

is that islands is plural of lang=en while isthmus is a narrow strip of land, bordered on both sides by water, and connecting two larger landmasses.

As a verb islands

is third-person singular of island lang=en.

As nouns the difference between isthmus and archipelago

is that isthmus is a narrow strip of land, bordered on both sides by water, and connecting two larger landmasses while archipelago is a group of islands.

As a noun isthmus is

a narrow strip of land, bordered on both sides by water, and connecting two larger landmasses.

As a noun isthmus is

a narrow strip of land, bordered on both sides by water, and connecting two larger landmasses.

In anatomy terms the difference between isthmus and promontory

is that isthmus is any such narrow part connecting two larger structures while promontory is a projecting part of the body.

As nouns the difference between isthmus and promontory

is that isthmus is a narrow strip of land, bordered on both sides by water, and connecting two larger landmasses while promontory is a high point of land extending into a body of water, headland; cliff.