Transitionalis is the Latin equivalent of 'transitional'. It's an adjective. Its meaning is 'of or relating to transitions'.
Transitional
A transitional boundary.
Of or pertaining to transition; involving or denoting transition; as, transitional changes; transitional stage.
Transitional phrases are essential to good flow in an essay."In addition" is an example of a transitional phrase.Caterpillars are a transitional step in the life of a butterfly.
Transitional metal = Oorgangsmetale
The bladder is the only organ which features pseudostratified tissue.
Transitional epithelium is the type of epithelial tissue that contains cells that can change shape as the tissue stretches. This type of tissue is found in organs like the bladder, where it needs to accommodate changes in volume without tearing.
Many (if not all) transitional words are adverbs.
Transitional Federal Parliament was created in 2004.
Transitional Federal Institutions was created in 2004.
Transitional Learning Center was created in 1982.
Afghan Transitional Administration was created in 2002.