Nuklei

Nuklei is a term that appears primarily as the plural form of the noun nucleus in some languages and as a transliteration of the Latin-derived plural nucleī. In English, the standard plural is nuclei. The spelling Nuklei reflects orthographic conventions found in certain Germanic-language contexts, where foreign technical terms are adapted to local spelling patterns.

Etymology and usage guide the form. The root is the Latin nucleus, meaning kernel or core. In English, the plural nucleī becomes nuclei. The variant Nuklei arises when the word is borrowed or transliterated into languages that favor -ei or -ii endings for plurals, or when adapting Latin-based terms to local orthography. As a result, Nuklei may be encountered in non-English scientific texts or in historical writings that use Germanic transliteration practices.

Contexts in science. The word nucleus has several related senses. In biology, it refers to the membrane-bound organelle that houses genetic material in eukaryotic cells. In physics and chemistry, it designates the central region of an atom containing protons and neutrons. When discussing multiple instances across these contexts in languages that employ Nuklei as a plural form, the term is used according to local grammar rules. In English-language science writing, however, nuclei remains the preferred plural.

See also. Nucleus, nucleolus, atomic nucleus, cellular nucleus, transliteration practices in scientific terminology.