[OT] no space after defined \newcommands in LaTeX

[Nori Heikkinen <nori@sccs.swarthmore.edu>]

this has been pissing me off recently.  if i define a new command 

\newcommand{\TM}{Turing machine}

and then say in my document 

... the \TM defined by blah blah ...

i will get the output ``the Turing machinedefined by blah blah.''

so i have to say

... the \TM ~defined by ...

I can't just define it to be

{Turing machine~}

because i want to be able to put punctuation directly after it.

How do people get around this?  or do you just deal?

thanks,

</nori>

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