sea squirt: ascidian that can contract its body and eject streams of water
ascidian: minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves
static line: a cord used instead of a ripcord to open a parachute; the cord is attached at one end to the aircraft and temporarily attached to the pack of a parachute at the other; it opens the parachute after the jumper is clear of the plane