Arboriculture Terms

leaf segments that project outward. creating voids (sinuses) between the segments (contrast with sinus).

pertaining to carabiners and snaps. requiring at least one distinct motion to prepare the gate to open (to unlock but not to actually open).

snap that is self-closing and requires at least one motion to unlock and a separate motion to open the gate. Used by tree climbers primarily for connecting the work-positioning lanyard to the harness.