Entertainment / Literature / Contraction: The squeezing together of sounds or words--especially when one word blurs into another--during fast or informal speech. Contractions such as I'm (I am), he's (he is), and they're (they are) are common in verbal communication, but they are often considered too loose for more formal writing.
Health / Fitness / Concentric Contraction: An isotonic muscle contraction, where a muscle contracts or shortens. MORE
Health / Fitness / Peak Contraction: Exercising a muscle until it cramps by using shortened movements. MORE
Health / Fitness / Eccentric Contraction: Muscle lengthens while maintaining tension. MORE
Science / Chemistry / Lanthanide Contraction: An effect that causes sixth period elements with filled 4f subshells to be smaller than otherwise expected. The intervention of the lanthanides increases the effective nuclear charge, which offsets th MORE