My first definition of chemistry is the study of chemicals (that's how I remember it) and how they react with each other and how to describe the experience and experiments in the most precise and concise words to be interpreted by other people in the scientific community and hopefully the non-scientific community.

My second definition of chemistry is from pop culture, which seems to mean how people relate to each other. A higher chemistry means people get along with each other well. A lower chemistry means people get along poorly or disagree most of the time.
NOTE: This example tries to combine both definitions to get a shared meaning.

Example: The chemicals are having a good chemistry with each other and reacting to beget inorganic or organic products. Sodium hydroxide and hydrochloric acid have excellent chemistry and marry and form their children called sodium chloride and dihydrogen monoxide (commonly known as water by its common name). At the atomic level, the ions are chemically bonding tightly! Yep, it's a real close lovely relationship!
by A. Pupil October 13, 2009

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Top Definition
The only natural science that can be broken down into the categories "making drugs" and "blowing stuff up". Unfortunately, chemistry isn't all fun and games, mostly because of chemistry teachers, who are always bitching about things like "significant figures" and "molality versus molarity".
Remember that chemistry demonstration where the teacher burned his eyebrows off? That was hilarious.
by Al February 05, 2004

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A school subject that teaches the alert young anarchist how to make primative explosive devices.
One of the few useful things I learnt at school was how to make nitro-based explosives.
by black flag June 02, 2004

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A notion, mostly used by very shallow girls, which suggests that there's this mysterious attraction between two people that's out of anyone's control, and either "just happens" or "just doesn't happen". It's complete bullshit, and more specifically just a cop out to use when a superficial girl tries to pretend she isn't shallow by telling some guy "there's just no chemistry between us", as an excuse not to be together. What she's really saying is "I'm an ignorant bimbo too hung-up on superficial qualities, and I don't care how nice you are because you're not "hot" enough for me. I need someone more attractive, even if he is a complete and total asshole". Then they go around saying things like "Oh, woe is me, I don't know why I keep ending up with the wrong guys". Gee, I wonder why. Will they ever get a clue? Maybe, but it usually doesn't happen until the girl finally grows up, which is usually around the time she turns 40 or so and realizes the qualities in a person that REALLY matter.
I believe that chemistry plays a huge part in a relationship and if that isn't there, then it's just not meant to be.

-- just another bimbo
by VonZippa June 16, 2004

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Chemistry is the process of torturing high school students into freaking out and consequently dropping out of school.
That bum was a victim of chemistry.
by bOb_ that one guy October 10, 2005

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The result of what happens when Math and Science become butt buddies.

Jennifer: So Sally, you up for some Chemistry Pre-AP PSAT CAHSEE College-prep Testing?! WHOOOOO CHEMISTRY!

Sally: Fuck chemistry, I'm becoming a stripper, bitch.
by Mjolnir1134 May 19, 2007

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(noun) 1. An excruciating form of torture; sometimes self-imposed. 2. Death broken down into many hourly segments, usually occuring in groups of 17 or more. 3. An extreme social disorder usually with physical symptoms.
1. I'd rather do chemistry than go out with you. 2. I can't go out tonight, I've got chemistry.
by Funguy November 04, 2003

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the spawn of satan
I've been doing chemistry for the past 5 hours. It sucks ass. I'm going to kill Dr. White. My hand hurts.
by gemgem April 24, 2003

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