A navigator's observation of the Sun to determine latitude.

plural of sun line

plural of milk line

(anatomy) A line from the root of the nose to the lambda.

plural of median line

Synonym of Zöllner illusion

Fine lines ruled on glass in a series of groups of different closeness of line, and used to test the power of a microscope.

(finance, banking) A credit facility under which a bank or other lender agrees to provide a client with loans of money up to an approved limit during a predefined period. The client may borrow the entire credit amount all at once or in portions during the specified period.

(military) The Distant Early Warning Line, a series of radar stations, located north of the Arctic Circle and extending from Alaska to Baffin Island, operated by American and Canadian authorities from the late 1950s to the early 1990s to help protect North America by detecting incoming hostile missiles and aircraft.

plural of conga line