mullion

n : a nonstructural vertical strip between the casements or

panes of a window (or the panels of a screen)

gillion

/gil'y▫n/ or /jil'y▫n/ (From {giga-} by analogy with

mega/million and tera/trillion) 10^9.

Same as an American billion or a British "milliard". How one

pronounces this depends on whether one speaks {giga-} with a

hard or soft "g".

[{Jargon File}]

(1995-03-17)