You searched for: “more penetrant
penetrant (adjective), more penetrant, most penetrant
A reference to someone or something which is sharp and that has the power to break in or to force its way into a place or a situation: The penetrant cold weather was difficult to live in because of the penetrant wind from the north.

A penetrant liquid is one that usually contains a dye or fluorescent chemical which, when poured over a metal surface, determines the existence of cracks.

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