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Cyclophobia

The irrational fear of bicycles.
Person 1: hop on my bike!
Person 2: nah man I got, cyclophobia.
Person 1: you scared of cyclops?
Person 2: no, bicycle.
by veekeev February 7, 2021
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cyclopentadienyl-propylcyclopentadienylruthenium

sandwich compound chemical, contains ruthenium sandwiched between a cyclopentadienyl group and a cyclopentadienyl group with a propyl side chain
Person A: In class, we recently learned about a cyclopentadienyl-propylcyclopentadienylruthenium!
Person B: What is wrong with you.
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Cyclopsing

Cyclopsing is the act of placing ones forehead gently or not gently on ones perineum aka the gooch, rotating the head by 15° to align one eye parallel to the rectum. The tongue is then used to fondle the sphincter till desired effect is achieved.
I have sustained a torticollis from cyclopsing last night
by PixieMandy April 10, 2023
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Cyclopentamine

Cyclopentamine is freebase cyclopentamine. It used to be used as a nasal decongestant before it got replaced by benzedrex with freebase Propylhexedrine. Cyclopentamine is weaker than Propylhexedrine. Dimethylamylamine freebase or Dimethylamylamine HCl can be used as a nasal decongestant, but Dimethylamylamine HCl was used as a pre-workout. Cyclopentamine HCl can be used as a pre-workout.
Fernando: I'm inhaling the nose decongestant which has freebase cyclopentamine in it. Now my nose is clear!
by CognitiveFuel July 11, 2023
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cyclocrossist

(noun) a person who rides a cyclocross bike.

This definition is needed to separate those who ride/race cyclocross from road cyclists, mountain bikers, triathletes, and others who ride/race bikes of various forms.
Jan: "Why is that guy running and carrying his bike? Shouldn't be he riding it? What an idiot!"

Sally: "No, silly, he's not an idiot. He's a cyclocrossist!"
by DJ Ali D. January 14, 2009
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cycloalkane

A special structure in organic chemistry containing single carbon bonded ring(s); cyclic alkanes. A way to imagine a cyclic alkane is to take a simple alkane chain, CH3(CH2)nCH3, and have the two terminal methyl groups meet, bending the chain, creating a ring. The shape of ring is completely dependent on the number of carbon atoms the ring contains. Example: cyclopropane (three carbons, therefore three vertices) is a triangle. Cyclohexane (6) would be a hexagon (on a plane, in space however the joints are kinked).
cyclopropane, cyclobutane, cyclohexane, cycloalkanes
by DaraDDS May 30, 2009
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cyclomute

verb:

to travel back and/or forth regularly by bicycle, tricycle, unicycle or similar human powered vehicle (as between where you are and where you want to be)
Lacking the desire to climb in to a motorized vehicle, Yehuda decided to cyclomute to work. He was laughed at by the 'regular' commuters... who were stuck in traffic.
by BykMor June 4, 2010
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