terminal line n.
An oblique ridge on the inner surface of the ilium, continuing on the pubis and separating the small from the large pelvis. Also called iliopectineal line.
terminal line: in Lepidoptera, runs along the outer margin of the wings.
Throughout the vast regions lying west and north of this terminal line, the track followed by the ice has been well ascertained.
Such appeared the terminal line of the moon when in one of her octants.