On Exes – Or at Least X’s

December 3, 2008

I know it’s a rando question, but: Why do so many abbreviations have X’s?

And these are just the ones I know, not even all the ones that are out there ….

Bx: biopsy
Dx: diagnosis
Fx: special effects
Px: physical exam
Rx: prescription
Sx: symptoms
Tx: treatment
Wx: weather

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{ 6 comments… read them below or add one }

1 beth 12.03.08 at 8:58 pm

Fun!

In the psychology world,
Bx = behavior
Fx = function
Hx = history
Tx = therapy (or treatment, as you’ve noted)

2 Anonymous 12.03.08 at 9:59 pm

Bx: Base Exchange
NEX: Navy Exchange
Vx: Airspeed for best angle of climb
Gx: Gravitational force exuded on the longitudinal axis
GOX: Gaseous Oxygen, I think
LOX: Liquid Oxygen
MUX/I-MUX: Multiplexor / Inverse Multiplexor
Mx: Maintenance
Rx: Receive
Tx: Transmit

Yeah, I’m a geek.

3 Avitable 12.04.08 at 12:45 am

My theory is that other than the ones that are obvious (like homonyms effects and FX or something with an “x” word like Physical Exam), it started out as a substitute for writing a period – you could write an “x” without lifting your pen from the paper, which was quicker.

4 Christine 12.04.08 at 10:03 am

In my work, we use Tx for transplant (as in the organ kind)

5 Glen Turpin 12.04.08 at 10:24 am

XML: Extensible Markup Language
UX: User Experience
MX: Music cue in a theatrical production

6 Lawrence Sherman 12.30.08 at 4:15 pm

Fx is also fracture
Ex is what most first spouses of physicians become

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