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.
tree(Noun) Any plant that is reminiscent of the above but not classified as a tree in the strict botanical sense: for example the banana tree. tree(Noun) An object made from a tree trunk and having multiple hooks or storage platforms. He had the choice of buying a scratching post or a cat tree.