Telophase

Part of speech: noun

Definitions

1. The final stage of cell division when chromosomes reach opposite ends of the cell ; the nuclear envelope reforms around each set of chromosomes ; the cell prepares to complete its split into two daughter cells
2. The phase of mitosis or meiosis where duplicated genetic material has segregated to the cell poles ; nuclear membranes reassemble ; the cytoplasmic division is close to completion
3. The concluding period in the separation process of cellular replication in which chromosome groups are enclosed by new nuclei ; nuclear envelopes reappear ; the two new cells are almost formed

Etymology: The term emerged in the late 19th century as scientists sought to describe the stages of cell division with greater precision. Biologists studying mitosis observed distinct phases during the process, and coined specific names to characterize each stage. "Telophase" was introduced to designate the final phase, during which the chromosomes, having been separated, reach opposite poles of the cell and begin to decondense, signaling the near end of mitotic division. Etymologically, it combines two Greek roots: "telos," meaning "end" or "completion," and "phase," from the Greek "phasis," meaning "appearance" or "stage." Together, they literally mean "end stage," a fitting description for the concluding part of mitosis. This construction reflects the scientific practice of the time, drawing on classical languages to create precise terminology for newly understood biological phenomena. The term entered English scientific vocabulary through German and French biological literature, where advances in microscopy and cell theory had spurred a surge in detailed descriptions of cellular processes. By the late 1800s, the clear delineation of mitotic phases—prophase, metaphase, anaphase, and telophase—was widely accepted, and the word became a standard fixture in biology texts. The development of such terms marked a shift from vague observations of cell division toward a systematic framework that allowed researchers to communicate complex processes succinctly. The naming of "telophase" thus stands as a milestone in the maturation of cytology as a discipline, anchoring an abstract concept in a compact, descriptive label derived from ancient language roots.

Synonyms: final phase, maturation phase, end phase, cytokinesis phase, mitotic phase