You can see the full category hierarchy on the Category Map.

Loose apronyms:
Perfect Apronyms OnlyAll Apronyms
ANGSTROMA Nitpicking Grump's Seriously Teenchy Register Of Measurement Tony McCoy O'Grady
BOLTBit Of Lovely Tweed Tony McCoy O'Grady
CALORIECannot Allow Living Off Rapturous Impulsive Eating Rico Leffanta
Food & Drink
CALORIE (2)Can A Living Organism Release Its Energy? Angela Brett
CANDELACalculating A Non-Dark (Electrically Lit?) Area Tony McCoy O'Grady
CAPACITIESCupful And Pint And CC, Intended To Itnternationalise Exact Standards Tony McCoy O'Grady
CORD (2)Chopper Organises Ready Deadwood Tony McCoy O'Grady
COULOMBCharge Of Umpteen Leptons, One Magnetism Below Angela Brett (One Magnetism Below referring to the leptons in question having electromagnetic charge of -1)
DECIBELDo Echoing Chords Injure Bandmembers' Eardrums, Lately? Tony McCoy O'Grady
DYNEDo You Need Energy? Tony McCoy O'Grady
FOOTFrequently, One Of Three Tony McCoy O'Grady (The foot is usually overshadowed by the Yard, which is three foot long)
GRAMMEGravity 'Reaching At' Mass, Measures Everything Tony McCoy O'Grady
HENRYHas Electricity Not Registered Yet? Tony McCoy O'Grady
HERTZHave Everything Recalibrated To Zero Tony McCoy O'Grady
HZHearing Zone Jan Morgan (Hz is usually short for Hertz)
INCHIt's Not Considered Highbrow Angela Brett
KNOT (2)Keeps Navigators On Target Angela Brett
LIGHT YEARLightspeed Information Gets Here To Yonder Each Annual Rotation Angela Brett
MEASUREMENTSMust Ensure Accurate Size Using Ruler - Errors Mean Everything's Now Too Short! Angela Brett and Patricia Rix
MEASUREMENTS (2)Many Early Artisans Surely Used Reliably Established Methods - Eliminating Nasty Tradesmen's Scams Tony McCoy O'Grady
METREMeasured Equator To Rotator's Extremities Angela Brett (the metre was originally intended to be one ten millionth of the distance from pole to equator.)
METRICSMarking Each Thousandfold Range Is Convenient Symbol Angela Brett
METRICS (2)Metre Equals Three Rather Inconsiderable Consecutive Steps Patricia Rix
METRICS (3)Measuring Equipment That Reads In "Centi-" Scales Tony McCoy O'Grady
MILES (3)Marching Imperial Legions Established Standard! Tony McCoy O'Grady - The mile as a unit of length is of Roman military origin, being 1000 paces (a double step.... counting 1 every time the right foot hit the ground)
MOLEMeasurement Of Lumpiness, Evidently Tony McCoy O'Grady
MOLE (2)Molecules Of Large Enumeration Angela Brett
NEWTON (5)Normally Expresses What "Thump" Offers, Numerically Tony McCoy O'Grady
PASCALPressure And Stress Calculations Are Lengthy Tony McCoy O'Grady
VALENTINE (4)Venus And Lips Entangle Naturally To Indicate Numerical Expression Tony McCoy O'Grady, proposing that the "Valentine" should be the SI unit of kisses.
People & Relationships:Love & Lust
YARDSTICKYe Auld Ruler... Do Stop Talking Imperial - Count Kilometres! Angela Brett