Macronym 

1:
The longform of an acronym.
i.e. the macronym of ADD is Attention Deficit Disorder.

2:
Used to describe what the roots of compound words are.
i.e. the macronym of won't is will not.

Antonym: Acronym

Someone uses an acronym you are not familiar with;
"What is the macronym?" Or,
"What is the macronym of _____?"

Macronym by The Spam October 4, 2022

Macronimous 

Macronimous is a information technology business name coined from the word Macro+ (Magna)nimous

Macronimous means Large or Big

Macronimous by agbenny August 8, 2016

micronym 

A word defined by somoene on urbandictionary.com just because they and their two friends made it up and use it. Nobody else will use it, since they the word's definition is only known in their microcosm.

I'm sorry you got sick, but that's no reason to define something like S.T.Diesed.

micronym by Mike Blaszczak December 17, 2003

mnacronym

Mnemonic + acronym; an acronym that assists the memory, where "mnemonic" means: something which assists the memory and "acronym" means: a word composed of the initials of other words.

"FACE," the mnacronym, helped me grasp and retain the whereabouts of notes' location on the musical staff.

mnacronym by Phili-Pbob'Sharsky July 11, 2011

macronome

4 metronome tick is equal 1 macronome.

You are playing 1/2 macronome slow

macronome by anonymous January 11, 2021