heavyweight adj.
[common] High-overhead; baroque;
code-intensive; featureful, but costly. Esp. used of
communication protocols, language designs, and any sort of
implementation in which maximum generality and/or ease of
implementation has been pushed at the expense of mundane
considerations such as speed, memory utilization, and startup
time. EMACS is a heavyweight editor;
X is an extremely heavyweight
window system. This term isn't pejorative, but one hacker's
heavyweight is another's elephantine and a third's monstrosity. Oppose `lightweight'. Usage:
now borders on techspeak, especially in the compound `heavyweight
process'.