down tree — noun Etymology: down (VII) + tree; from the thick cottony fibers surrounding the seeds : balsa 1 … Useful english dictionary
Tree sitting — is a form of environmentalist civil disobedience in which a protester sits in a tree, usually on a small platform built for the purpose, to protect it from being cut down (speculating that loggers will not endanger human lives by cutting an… … Wikipedia
Down — Down, n. [Akin to LG. dune, dun, Icel. d?nn, Sw. dun, Dan. duun, G. daune, cf. D. dons; perh. akin to E. dust.] 1. Fine, soft, hairy outgrowth from the skin or surface of animals or plants, not matted and fleecy like wool; esp.: (a) (Zo[ o]l.)… … The Collaborative International Dictionary of English
Tree automaton — A tree automaton is a type of state machine. Tree automata deal with tree structures, rather than the strings of more conventional state machines. The following article deals with branching tree automata, which correspond to regular languages of… … Wikipedia
Tree of life (biology) — See also Tree of life (disambiguation) for other meanings of the Tree of Life. Hillis plot Tree Of Life, based on completely sequenced genomes. Charles Darwin proposed that phylogeny, the evolutionary relatedness among species through time, was… … Wikipedia
Tree — /tree/, n. Sir Herbert Beerbohm /bear bohm/, (Herbert Beerbohm), 1853 1917, English actor and theater manager; brother of Max Beerbohm. * * * I Woody perennial plant. Most trees have a single self supporting trunk containing woody tissues, and in … Universalium
Tree worship — (dendrolatry) refers to the tendency of many societies throughout history to worship or otherwise mythologize trees. Trees have played an important role in many of the world s mythologies and religions, and have been given deep and sacred… … Wikipedia
Tree stand — Tree stands give an edge to hunters who use them. Many people also know tree stands as deer stands. Tree stands are becoming more popular with advances in technology. TypesHunters use three different types of tree stands. A fourth type of stand… … Wikipedia
Tree climbing — is an activity consisting of ascending and moving around in the canopy of trees.Tree climbing is safe when done with the proper training and equipment. Use of a rope, helmet, and harness are the minimum requirements to ensure the safety of the… … Wikipedia
Tree conservation areas in Singapore — Tree Conservation Areas are large urban areas in Singapore in which no tree with a girth above 1 metre when measured 50 centimetres from the ground may be felled without permission from the National Parks Board. There are currently two such areas … Wikipedia