More from Merriam-Webster on penetrant Thesaurus: All synonyms and antonyms for penetrant

Oct 5, 2025 · Noun penetrant (plural penetrants) Something, especially a liquid, that penetrates.

penetrant in American English (ˈpɛnɪtrənt ) adjective Origin: L penetrans, prp. of penetrare

Define penetrant. penetrant synonyms, penetrant pronunciation, penetrant translation, English dictionary definition of penetrant. adj. Penetrating; piercing: a penetrant wind. n. Something that penetrates or …

Penetrants, or penetrating items, are the mechanical, electrical or structural items that pass through an opening in a wall or floor, such as pipes, electrical conduits, ducting, cables and cable trays, or …

There are five meanings listed in OED's entry for the word penetrant, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Penetrant refers to a quality or characteristic of a chemical or physical agent that allows it to infiltrate or permeate a substance.

Penetrant definition: Penetrating; piercing.

Penetrant materials come in two basic types. These types are listed below: Fluorescent penetrants contain a dye or several dyes that fluoresce when exposed to ultraviolet radiation. Visible penetrants …

PENETRANT definition: a person or thing that penetrates. See examples of penetrant used in a sentence.