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Arboriculture Glossary of TermsThere are 1070 entries in this glossary.
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plant with two cotyledons in its embryo; netted or palmate leaf veins; and flowers with three, four, or five petals, or petals in multiples of these numbers. Contrast with monocotyledon.
condition in which the branches in the tree crown die from the tips toward the center.
insulating (nonconducting) material.
process in the development of cells in which they become specialized for various functions.
pattern of wood development in which the vessels and vessel sizes are distributed evenly throughout the annual ring. Contrast with ring porous.
acronym for Deutsches Institut f
in Germany, standard that deals with plants and planting in the landscape industry.
in Germany, standard that deals with development and maintenance of green areas.
in Germany, standard that deals with the protection of trees on construction sites.
species of plants in which male and female flowers are on separate plants. Contrast with monoecious.
|direct cable system||
simple tree cabling system joining two branches or leaders with a single cable. Contrast with box cable system and triangular cable system.
any part of the body touching an energized conductor.
providing clearance by pruning branches that could significantly affect the integrity of utility facilities or other structures, and leaving in place branches that could have little or no effect.
condition that impairs the performance of one or more vital functions. Usually associated with infectious agents.
abnormal condition that impairs the performance of one or more vital functions. Usually associated with noninfectious agents.
type of friction hitch used in climbing and rigging.
electric supply lines in a distribution network that carry power from substations to end users. Voltages are generally between 2,400 and 34,500 volts.
portion of the electric supply system that delivers electricity to end users. Includes distribution substations, feeders, primaries, distribution transformers, secondaries, and service lines.
portion of the transmission and facilities of an electric system that is dedicated to delivering electric energy to an end user.
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