Orthogenetic is an adjective that refers to the development of an organism in a predetermined direction, implying that it follows a linear evolutionary path or a progressive sequence of growth. Some synonyms for this term that convey a similar meaning or context include sequential, ordered, systematic, successive, progressive, developmental, directional, and evolutionary. These words suggest that an organism is developing in a planned way, following a set of steps or stages, and moving toward a specific goal or outcome. In science, orthogenetic often applies to theories of evolution or genetics, where researchers explore how organisms develop traits or characteristics over time.