Final answer:
A subdivision in malocclusion classification indicates that the molar relationships are different on the right and left sides, suggesting asymmetric dental arch malocclusion.
Step-by-step explanation:
The term "subdivision" in malocclusion classification refers to molar relationships that are different on the right and left side. This classification is used when describing how the upper and lower teeth align. In subdivision malocclusions, one may find that the molar relationship on one side of the mouth might be classified as one type, while the other side may present a different classification, indicating that the dental arches are not symmetrical in their malocclusion pattern.