What does vialling mean?
Vialling means putting a substance into a vial, or filling small containers in preparation for storage, testing, transport, or sale. In British spelling it is the present participle and gerund of the verb “vial”; American English normally writes the same form as “vialing.” The word is most often encountered in laboratory, pharmaceutical, cosmetic, and related production contexts, where technicians describe the process of “vialling samples” or “vialling essential oils.” It can also function as an adjective before a noun, as in “the vialling procedure,” describing what kind of action is involved. Although its core sense is literal and technical, the expression is not restricted to one profession: anyone can put material into small bottles. Its interest lies partly in its compact British morphology, with the final consonant doubled before the -ing suffix, and in its long-standing connection to the older noun “vial.” In ordinary conversation, “bottling” may be broader, while “putting in vials” is the clearest paraphrase.
verb (present participle and gerund)Putting or placing a substance into a vial, especially when filling small containers for storage, transport, testing, or distribution.
- Putting or loading a substance into a vial or vials.
"The technician spent the afternoon vialling samples before sending them to the laboratory."
"She is vialling essential oils into small amber bottles."
"The laboratory is vialling each sample before analysis."
Two l’s and many tiny bottles: “vialling” is the British spelling for filling vials.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of vialling
“Vialling” is the British-spelled present participle and gerund of “vial,” a verb meaning to place something in a vial. The noun “vial” came through Anglo-French and Medieval Latin from Latin “vitulus,” meaning “calf,” with the bottle's name developing through a diminutive meaning “small bottle.” The same Latin root also underlies words such as “veal,” “vitellin,” and “vitelline.” The doubled l in “vialling” reflects the normal British practice of doubling a final consonant before -ing when the suffix begins with i.
Related word forms
How vialling is actually used
The form with the doubled final l is standard in British English; US English normally uses “vialing.” It occurs chiefly in technical and manufacturing contexts but is not limited to laboratory work. It can function as a participle or as a gerund, including as a modifier: “the vialling procedure.”