california sycamore: tall tree of Baja California having deciduous bark and large alternate palmately lobed leaves and ball-shaped clusters of flowers
physical entity: an entity that has physical existence
hippocampus: a complex neural structure (shaped like a sea horse) consisting of grey matter and located on the floor of each lateral ventricle; intimately involved in motivation and emotion as part of the limbic system; has a central role in the formation of memories