Although an infant's color vision is not as sensitive as an adult's, it is generally believed that babies have good color vision by five months of age. Most babies start crawling at about 8 months old, which helps further develop eye-hand-foot-body coordination.
A language tree, or family tree with languages substituted for real family members, has the form of a node-link diagram of a logical tree structure. Such a diagram contains branch points, or nodes, from which the daughter languages descend by different links.
[tri] (tree), although some encourage the use of [traÉª] (try) or the use of [triËeÉª] (tree-ay) in order to distinguish it from the more general tree. trie â(plural tries) (computer science) An ordered tree data structure that is used to store an associative array where the keys are usually strings. prefix tree.