"Howard Lester" wrote in message ...

(Robert Cook) wrote in message
. com...

The American
pronunciation is "try-fid" (long i, then short i) with more emphasis
on the first syllable.

I'd always said TRIH-fid to myself, but TRY-fid makes more sense if maybe it
refers to a partition into three.

Indeed it does--it means that something is divided into three areas by
narrow but long/deep gaps. I'd say that this pretty accurately
describes the object itself:

http://www.seds.org/messier/m/m020.html


- Robert Cook