An and–or tree is a graphical representation of the reduction of problems (or goals) to conjunctions and disjunctions of subproblems (or subgoals). The...

botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be...

Tree and Leaf is a small anthology of works by J. R. R. Tolkien published in 1964 and originally illustrated by Pauline Baynes which consisted of: a revised...

A Christmas tree is a decorated tree, usually an evergreen conifer, such as a spruce, pine or fir, or an artificial tree of similar appearance, associated...

tree structure, tree diagram, or tree model is a way of representing the hierarchical nature of a structure in a graphical form. It is named a "tree structure"...

cryptography and computer science, a hash tree or Merkle tree is a tree in which every "leaf" node is labelled with the cryptographic hash of a data block, and every...

In computer science, tree traversal (also known as tree search and walking the tree) is a form of graph traversal and refers to the process of visiting...

Look up dead tree or dead-tree in Wiktionary, the free dictionary. Dead tree may refer to: Dead Trees, an album by From First to Last Coarse woody debris...

phylogenetic tree, phylogeny or evolutionary tree is a graphical representation which shows the evolutionary history between a set of species or taxa during...

One Tree Hill is an American drama television series created by Mark Schwahn, which premiered on September 23, 2003, on The WB. After the series' third...

broad-leaved, broad-leaf, or broadleaf tree is any tree within the diverse botanical group of angiosperms that has flat leaves and produces seeds inside of...

leaf or a node with two or more children. A B+ tree can be viewed as a B-tree in which each node contains only keys (not key–value pairs), and to which...

In graph theory, a tree is an undirected graph in which any two vertices are connected by exactly one path, or equivalently a connected acyclic undirected...

family tree of the English, Scottish, and British monarchs. For more-detailed charts see: Family tree of English monarchs, from Alfred the Great and Æthelstan...

theory Decision tree, a decision support tool that uses a tree-like graph or model of decisions and their possible consequences Event tree, inductive analytical...

science, a B-tree is a self-balancing tree data structure that maintains sorted data and allows searches, sequential access, insertions, and deletions in...

the family tree for monarchs of England (and Wales after 1282) from Alfred the Great to Elizabeth I of England. The House of Wessex family tree precedes...

tea tree oil Leptospermum, also in the family Myrtaceae, source for Mānuka honey Kunzea ericoides, known as White tea-tree or kānuka, a tree or shrub...

tree can mean: Any of a number of tree species in the genera Gleditsia or Robinia, including: Honey locust (Gleditsia triacanthos), a leguminous tree...

A tree frog (or treefrog) is any species of frog that spends a major portion of its lifespan in trees, known as an arboreal state. Several lineages of...

and the tree of life, connecting all forms of creation, are forms of the world tree or cosmic tree, and are portrayed in various religions and philosophies...

Fault tree is based on AND and OR gates which define the major characteristics of the fault tree. Evaluate the fault tree. After the fault tree has been...

drumstick tree (from the long, slender, triangular seed-pods), horseradish tree (from the taste of the roots, which resembles horseradish), or malunggay...

In Judaism and Christianity, the tree of the knowledge of good and evil (Tiberian Hebrew: עֵץ הַדַּעַת טוֹב וָרָע, romanized: ʿêṣ had-daʿaṯ ṭōḇ wā-rāʿ...

money tree or money doesn't grow on trees in Wiktionary, the free dictionary. Money tree may refer to: Money tree (myth), a Chinese myth Money tree, an...

A pine is any conifer tree or shrub in the genus Pinus (/ˈpaɪnəs/) of the family Pinaceae. Pinus is the sole genus in the subfamily Pinoideae. World Flora...

9914694 The Bodhi Tree ("tree of awakening" or "tree of enlightenment"), also called the Mahabodhi Tree or Bo Tree, is a large sacred fig tree (Ficus religiosa)...

Tree of Life – Or L'Simcha Congregation (Hebrew: עֵץ חַיִּים – אוֹר לְשִׂמְחָה) is a Conservative Jewish synagogue in the Squirrel Hill neighborhood of...

Look up tree hugger or treehugger in Wiktionary, the free dictionary. Tree hugger may refer to: A term used for the Bishnois, who perished in the Khejarli...

top-most node in the tree hierarchy). These constraints mean there are no cycles or "loops" (no node can be its own ancestor), and also that each child...