1) Tree 2) Tree diagram 
A cladogram is a diagram used in cladistics which shows relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to descendants or how much they have changed; many evolutionary trees can be inferred from a single cladogram. A cladogram uses lines that branch off in different di...
A diagram showing nothing more than the sequence in which groups of organisms are interpreted to have originated and diverged in the course of evolution.
Cladograms are branching diagrams that depict species divergence from common ancestors. They show the distribution and origins of shared characteristics. Cladograms are testable hypotheses of phylogenetic relationships. 
The cladistic diagrammatic 'tree' of taxonomic relationships.
A branching diagram that illustrates hypotheses about the evolutionary relationships among groups of organisms. Cladograms can be considered as a special type of phylogenetic tree that concentrates on the order in which different groups branched off from their common ancestors. A cladogram branches like a family tree, with the most closely related ...
A diagram, resulting from a cladistic analysis, which depicts a hypothetical branching sequence of lineages leading to the taxa under consideration. The points of branching within a cladogram are called nodes. All taxa occur at the endpoints of the cladogram.
[n] - a tree diagram used to illustrate phylogenetic relationships
cladogram A diagram, resulting from a cladistic analysis, which depicts a hypothetical branching sequence of lineages leading to the taxa under consideration. The points of branching within a cladogram are called nodes. All taxa occur at the endpoints of the cladogram.
in cladistics, a graphic depiction of evolutionary relationships based on shared derived characters
A tree-like diagram showing evolutionary relationships. Any two branch tips sharing the same immediate node are most closely related. All taxa that can be traced directly to one node (that is they are 'upstream of a node') are said to be members of a monophyletic group. 
noun a tree diagram used to illustrate phylogenetic relationships
a branching diagram depicting the successive points of species divergence from common ancestral lines without regard to the degree of deviation. Cf.