| Term: | Dark nilas |
| Definition: | Nilas which is under 5 cm in thickness and is very dark in color. |
| Term: | Dark nilas |
| Definition: | Sea ice terminology which describes a nilas of up to 5 cm in thickness, which is very dark in colour. |
| Term: | Dark nilas |
| Definition: | Nilas that is under 2 in (5 cm) in thickness and is very dark in color. |