They r called veins
A long, narrow , deep inlet of the sea between hills or mountains
A 21 foot boat refers to the length of the boat. There is not comparison between length and width. It could be narrow as on narrow boats or wide as in sea faring boats,
A light beam or beam of light is a narrow cone of light energy radiating from a small source. In optics, a ray is an idealized narrow beam of light.
i have narrow flat curved stool
cirques
It is called an isthmus.
an alley. A narrow passage between buildings or parts of different buildings is also called an areaway.
Narrow lines of colors with no light in between them are called dark lines. They are typically seen in the spectrum of light when certain wavelengths are absorbed or blocked.
A small narrow waterway between two pieces of land is called a strait.
it is called an isthmus
The passage between buildings is typically called an alley or a walkway. It is a narrow path that provides access between two structures.
The narrow neck of land between Nova Scotia and New Brunswick is called the Chignecto Isthmus.
This would be called a fjord.
this is called an Isthmus
This is because it is a narrow boat
A long narrow cut is called a slit.