Look up: penetrant

1. 
   Penetrant
   An additive or adjuvant added to a spray to enable it to penetrate the waxy insect cuticle or the outer surface of plant tissues more effectively.
   Found on http://www.pestmanagement.co.uk/lib/glos
   
   
2. 
   penetrant
   a liquid which,when applied to a material,is designed to find its way into surface fissures and to remain there in detectable amounts during the subsequent removal of excess from the surface Category: Standards, measures and testing
   Found on http://www.mijnwoordenboek.nl/definition
   
   
3. 
   Penetrant
   Pen'e·trant adjective [ Latin penetrans , present participle of penetrare : confer French pénétrant .] Having power to enter or pierce; penetrating; sharp; subtile; as, penetrant cold. ' Penetrant and powerful arguments.' Boyle.
   Found on http://www.encyclo.co.uk/webster/P/46
   
   
4. 
   Penetrant
   `Penetrants` 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 structural steel beams and columns. When these items pierce a wall or floor assembly, they create a space between the penetrant and the surrounding structure, which can become an avenue for the spread of fire between rooms or floors. Modern building codes generally...
   Found on http://en.wikipedia.org/wiki/Penetrant
   
   
5. 
   Penetrant
   • (a.) Having power to enter or pierce; penetrating; sharp; subtile; as, penetrant cold.
   Found on http://thinkexist.com/dictionary/meaning
   
   
6. 
   Penetrant
   See Inspection Penetrants
   Found on http://www.amgas.com/gloss.htm