effissioncy

How economically a nuke plant operates.

Hydroelectric and fossil-fueled power plants can continue operating for many decades with just routine maintenance, but uranium-operated generating stations hafta be completely replaced after just a relatively few years --- not very good "effissioncy" there, if you ask me!

by QuacksO February 13, 2023

Effie

A vagina with physical characteristics that are so pleasurable and valuable to men (e.g. it’s clenching/grabbing ability) that it’s bearer , if cunning and intelligent, can use it to manipulate men to do her bidding.

“That girl must have an Effie, the way she has her dude sprung.

by KingCobra11 May 13, 2023

eFFIcks

The things in which moralfags lack.

I woke up this moarning wiffout eFFicks.

eFFicks are moral standards that everyone claims to have. ;

by cR34p3r June 2, 2023

Efrita

The most kind, carefree, intelligent and helpful people you will ever meet. Efrita is someone that can make anyone smile just by being herself, alongside her bright personality she is also gifted with stunning visuals. Efrita(s) will probably be cat lovers and amongst the most affectionate people to walk this Earth!

Hayley: Hey guys, I needed help with yesterdays homework so I asked Efrita for some assistance and she helped me!
Ahmed: She really is one of the best people I’ve ever met!

by Onha November 20, 2023

Effing the cat

Referring to the driver of a car or motor vehicle.

Kee loves effing the cat on long road trips.

Who ever is effing the cat picks the music.

by Fridge_666 July 11, 2024

efficitur

efficient

It's efficitur!

by kionchan123 May 13, 2024

Efficient Extraction Methods

Techniques designed to maximize the yield of desired resources (water, metals, volatiles) from raw materials (ore, regolith, atmosphere) while minimizing energy input, waste, and environmental footprint. In space, efficiency is survival—every joule of energy and kilogram of mass is precious. Methods include in-situ resource utilization (ISRU) like using solar ovens to bake oxygen out of lunar soil, electrochemical processing of asteroid ore, or passive wind-traps to collect atmospheric moisture on Mars.

Efficient Extraction Methods Example: The MOXIE experiment on the Mars Perseverance rover, which uses electrolysis to efficiently extract breathable oxygen from the carbon dioxide-rich Martian atmosphere, is a prototype Efficient Extraction Method. On the Moon, using concentrated sunlight to thermally reduce ilmenite ore for iron and oxygen is another, as it uses abundant solar energy instead of imported chemicals.

by Abzugal Nammugal Enkigal February 3, 2026