A child born to In-Vitro fertilisation, see IVF, who was concieved in a test tube a few hours before being put into the mother.
Louise Brown was the worlds' first test tube baby in 1978.
by Gumba Gumba May 27, 2004
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A test tube baby was conceived by artificial means, by introducing the sperm and egg to each other outside the body. The zygote is then implanted into the future mother's womb.

Test tube babies are NOT born in test tubes. Not yet, anyway.
Jill had a very hard time getting pregnant, so she decided to try having a test tube baby.
by Athene Airheart March 21, 2004
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A person who is the ultimate dumb. So dumb, that he/she could have been born in a test tube.
Your brother acts like he's freaking retarded.

Yea. He's a test tube baby.
by Kevin ma April 20, 2006
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Sisters by heart. Best friends who are so alike it is like they were created in a test tube. (Brave new world)
Omg we are basically the same person!
-we are like test tube sisters
by Bæ17 February 20, 2015
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Farting in a revolving door, leaving your stink for the next person.
Oh man I was the victim of a Cincinnati Test Tube, coming into work today.
by Astroworm May 30, 2012
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A child who is born in a test tube through the mixing of the mothers egg cells and the fathers sperm cells.
Frank Mongiove is a test tube baby.
by Will Harbaugh March 19, 2004
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