What does covalently mean?
"Covalently" is an adverb used almost exclusively in chemistry to describe connections formed by covalent bonds — bonds in which atoms share pairs of electrons rather than transferring them outright. When scientists say that two atoms are "covalently bonded," "covalently linked," or "covalently attached," they mean that shared electrons hold them together with considerable strength, as in the carbon–carbon bonds that give diamond its hardness or the bonds that anchor a molecule onto a surface or a polymer chain. The word derives from "covalent," coined from the Latin prefix "co-" (together) plus "valent," referring to valence, the combining capacity of an atom. Though firmly technical in register, appearing mainly in textbooks and research literature, "covalently" has occasionally been borrowed metaphorically to evoke an exceptionally strong or permanent bond between people, institutions, or ideas. It carries no emotional connotation; it simply signals precision about how things are chemically joined.
adverbIn a manner involving covalent bonds — the sharing of electron pairs between atoms. Used almost exclusively in chemistry to describe how atoms are linked within molecules.
- By means of a covalent bond; through the sharing of electron pairs between atoms (used in chemistry and biochemistry).
"The two carbon atoms are covalently bonded, sharing a pair of electrons."
"The drug is covalently attached to the polymer backbone, ensuring slow release in the bloodstream."
"In diamond, each carbon atom is covalently bonded to four others, creating an exceptionally rigid crystal lattice."
When atoms go "steady," they do it covalently — literally sharing their electrons instead of just exchanging pleasantries.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of covalently
"Covalently" derives from "covalent," a term coined in early twentieth-century chemistry from the Latin prefix "co-" (meaning "together") combined with "valent," from "valence," the measure of an atom's capacity to combine with other atoms. The adjective "covalent" described bonds based on shared rather than transferred electrons, and the adverb followed naturally in scientific usage. Its root ultimately traces back to the Latin "valere" (to be strong or have power), which also gives English words like "valid," "value," and "prevail."
Related word forms
How covalently is actually used
"Covalently" is strictly technical vocabulary, found almost entirely in chemistry textbooks, research papers, and materials science. It is rarely used figuratively or in everyday conversation, though writers occasionally borrow it metaphorically to suggest an unbreakable connection. It is standard in both British and American scientific writing.
Easily confused with covalently
"Covalent" is an adjective describing the bond itself, while "covalently" is its adverbial form describing how something is held or joined.