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Medium-Density fiberboard (MDF) is an engineered wood product used in construction and woodworking as a substitute for plywood. MDF is manufactured by adding fine wood fibers of various types of wood to a defibrator. The fibers are combined, bound by wax and resin, then formed using high pressure and temperature to become a solid sheet of predetermined thickness that is capable of being cut into boards.

Compared with hardwood, MDF is lighter, the chemicals within repel termites, and it doesn’t warp much in humid weather. MDF is typically more dense than plywood. It is composed of separated fibers but can be utilized as a building material same in application to plywood. It is tougher and denser than particle board.

Note: while MDF is the abbreviation of 'Medium-Density fiberboard', it is also often referenced as "MDF board".
A greatly beneficial property of MDF is that it is a fire-resistant material. MDF does not burn easily, and when treated with fire-retardants, it becomes even more unlikely to catch fire.

The MDF board is most popularly used in house interior carpentry cabinetry work.

MDF board is raising some health concerns because it’s made with an adhesive containing urea-formaldehyde (or urea-methanal formaldehyde), which “off-gasses” into its surroundings.
MDF by PEntity November 12, 2022
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Short for "Make Decisions, Fuck Results". Common adage among poker players.
He went all in on the turn, and I knew he was bluffing, so I called him with my pocket twos. He showed just ace high... but then he caught an ace on the river! I made the right call though. Just gotta MDFR.
MDFR by PokerSucks August 11, 2010
Related Words
MDF mdfk MDFMK mdfd MDFFL MDFH MDFL mdfndnd MDFO mdfol
An acronym for : My Dearest Friend For Life. The highest form of friendship and a loving bond between two people. They would take bullets for one another. They are willing to be weird and crazy around each other... no questions asked. Unbreakable bond... they always end up back together. Fate reunites them no matter where they are. They are friends that are comfortable being with each other and doesn’t feel the urge to have small talk.. their presence is enough. If you find your MDFFL keep and hold them close.
MDFFL is having a party tomorrow.

I got MDFFL an amazing birthday present.

I bought a train ticket to surprise MDFFL at her new school.
MDFFL by Chicken Nuggerts July 22, 2018
Mix drink from hell. Consists of Vodka, Whiskey, Beer, Rum, and Sunny Delight
Are you man enough to try the MDFH
MDFH by J ROG809 October 4, 2010
Muff Diver For Life- a person who likes to bury their face into loose hairy vagina.
A MDFL needs a snorkel.
MDFL by Fuck you Jimmy March 5, 2020
I'mdfwy- (I'm) (d)one (f)ucking (w)ith (y)ou. Similar to the designation idfwy (I don't fuck with you), but used after the fact. Where idfwy is preemptive, i.e. "I don't want to have anything to do with you". I'mdfwy is said after the fact, having known the person and realizing you no longer want to have any communications whatsoever.
Nikki: You're an asshole. I hate you.
Nicholas: After all I've done for you, this is how you treat me.

Nikki: (a week later with no contact via text) Please forgive me. I messed up.
Nicholas: Nope. I'm tired of you always treating me like this. You're not going to change. It's clear now. You know what? I'mdfwy. Bye.
I'mdfwy by NickVic August 15, 2019
'mi da fom sri kwa kwa'. Translated into the Ghanaian Akan language from the English term 'ROTFL' (Rolling on the floor laughing).
Guy 1: I was with Ted last night, you won't believe that he run into a pole so hard i think he dented it!

Guy 2: mdfskk, he is such an idiot.
mdfskk by PuushaT February 6, 2014