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Arboriculture Glossary of TermsThere are 1070 entries in this glossary.
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dynamic, sudden force placed on a rope or rigging apparatus when a moving load or piece is stopped.
stem or branch and its leaves, especially when young.
word that designates an advisory recommendation in the ANSI standards or contract documents. Contrast with shall.
long, slender phloem cells in gymnosperms.
|sieve tube elements||
specialized phloem cells involved in photosynthate transport. Exist only in angiosperms.
physical evidence of a causal agent (e.g., insect eggs, borer hole, frass). Contrast with symptom.
soil particles with a grain size between 0.004 and 0.062 millimeter (coarser than clay particles but finer than sand). Contrast with clay and sand.
study and practice of the maintenance and growth of forests.
single-bladed leaf. Not composed of leaflets. Contrast with compound leaf.
pertaining to carabiners and snaps, requiring one motion for the gate to open. A nonlocking carabiner is single action.
plant part that uses or stores more energy than it produces.
downward-growing roots that provide anchorage and take up water and minerals. Especially useful during periods of drought.
space between two lobes of a leaf. Contrast with lobe.
(1) consideration or evaluation of the conditions, restrictions, and environment of a planting site. (2) consideration or evaluation of a construction or development site requiring a tree conservation or preservation plan.
factors that must be taken into account when assessing a site for planting, tree conservation, or preservation or for any operation.
leaf-feeding damage caused by insects (skeletonizers), characterized by the loss of tissue between the leaf veins.
any of several devices used to facilitate taking up slack in the climbing line.
device used in rigging to secure equipment or pieces being rigged.
slipped overhand knot.
having a bight of rope passed through the final tuck in a knot to provide for quick release.
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