intumescent 

Substances which swell as a result of heat exposure thus increasing in volume and decreasing in density. Intumescents are typically endothermic to varying degrees, as they can contain chemically bound water. Intumescents are used in firestopping, fireproofing and gasketing applications. Some intumescents are susceptible to environmental influences such as humidity, which can reduce or negate their ability to function. DIBt approvals quantify the ability of intumescents to stand the test of time against various environmental exposures. DIBt approved firestops and fireproofing materials are available in Canada and the US. DIBt approvals have a finite validity and one must check the expiry date, which is printed on the front of the approval document.

firestop caulking, fireproofing paint, firestop pillows, plastic pipe devices

intumescent by Achim Hering August 12, 2004

Intumescent 

Substances which swell as a result of heat exposure thus increasing in volume and decreasing in density.

When Ken said intumescent in the office we thought he made up another word.

Derek thinks the definition describes his dong.

Intumescent by Saybrook Village idiot January 22, 2021

intumescence 

noun
1. The act or process of swelling or the condition of being swollen.
2. A swollen organ or body part.

The intumescence beneath her bikini top was arousing.

intumescence by Xanthous Intumescence May 4, 2005

inpubescent 

Opposite to pubescent.

You're so inpubescent Brandon.

inpubescent by j4ck0 November 4, 2013