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.

cyclomute by BykMor June 4, 2010

Cyclopentadiene 

An hydrocarbon compound that is basically violating being a hydrocarbon. Its pKa value is only 16, making it as acidic as water.
Its structure is a cyclopentane ring with 2 double bonds.

The reason for cyclopentadiene to be such acidic is because of its ionic structure. It has an aromatic anionic structure, making it extremely stable.

Cyclopentadiene by chemguide August 12, 2019

Cylle 

Has a variety of their name being spoken differently. Is probably an Asian crackhead who's into gaming and coding. Loves monster and is stupid and autistic as fuck. Probably nothing good about him and only dumb people date them.

Cylle's such a crackhead. He only drinks monster or coffee and hasn't come out of his room in days.

Cylle by CrackheadWeeb January 4, 2020

Cylen 

Cylen is someone who is loving, caring, the most realist person you can come across, she is a bit shy but once she feels comfortable around you there's no more shyness. She is hilarious, if you are around her you can never stop laughing. She literally cracks people up with laughter. She loves being silly and doing things to put a smile on others faces, she can get unladylike sometimes but that's mostly when you have pushed her over the edge. Cylen is a super-duper loyal Girlfriend. She doesn't like the sound of unloyal and dishonest relationships. Cylen's a keeper! She may drive you up a wall but it's worth it. Have you ever meet a girl name Cylen? If not you should she will lighten up your whole life! Literally! ;)

Her name begins with C..... What do you expect?
ALSO, cylen is a name with lots of descriptions!

Cylen by ~C's Best-friend :) November 17, 2020

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.

Cyclophobia by veekeev February 7, 2021

cyplexion 

Cyplexion is a portmanteau for cybernetics complexity and tension.

Cyplexion Leadership is an approach to deal with complex challenges and to use the force of complexity.

cyplexion by Georg15 March 10, 2021

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.

cyclopentadienyl-propylcyclopentadienylruthenium by British Virgin Islands at the March 11, 2023