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Arboriculture Glossary of Terms
There are 1070 entries in this glossary.
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| Term | Definition |
|---|---|
| biotic |
pertaining to living organisms.
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| biotic disorder |
disorder caused by an infectious living agent.
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| bipinnate |
double pinnate. Contrast with palmate and pinnate.
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| blade |
(1) expanded body of a leaf. (2) sharp, cutting part of a tool.
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| Blake |
friction knot climbers use, sometimes in place of the tautline hitch or Prusik knot.
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| bleeding |
(1) flow of sap from plant wounds, injuries, or pathogen invasion. (2) flow of blood from a human or animal wound.
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| blight |
any disease or disorder, regardless of the causal agent, that kills young plant tissues.
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| block |
heavy-duty pulley used in rigging. Designed for dynamic loading.
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| block and tackle |
system of two or more pulleys with a rope or cable threaded between them, usually used to lift or pull heavy loads.
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| blocking |
method of using an arborist block to rig down trunk sections. Contrast with butt-hitching.
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| body-thrust |
method of ascending a tree using a climbing rope.
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| bole |
main trunk of a tree below the branches, usually used in reference to a tall tree whose first branch is high off the ground.
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| bollard |
post on which wraps can be taken with a rope to tie it off or to provide friction for control.
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| bolt |
(1) lag- or machine-threaded cable anchor or bracing rod; used with a nut and washer in supplement support systems in trees. (2) a machine-threaded fastener used with a nut and washer in various equipment or structures.
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| bonding conductor |
conductor that connects a tree support cable or metal conduit to a lightning protection system.
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| bonsai |
art of pruning and managing tree growth through root pruning to maintain a miniature size.
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| boom |
long, movable arm of an aerial device or crane.
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| bore cut |
using the tip of a chain saw to cut into or through the middle of a piece of wood. Back-cut technique in which the hinge is established by plunge cutting through the stem, then cutting back away from the hinge. Plunge cut. Contrast with back cut.
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| botanicals |
compounds (pesticides, oils, etc.) made from plants.
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| bowline |
loop knot used to form single or double endline loop(s) in a rope, often to attach items to the rope.
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