a transparent object is one that lets light pass through with no shadows formed eg. clear window , transparent glass
a translucent object lets only some light go through (not all)and forms a shadow that is very light eg. bathroom window
an opaque object lets no light pass through and forms a shadow eg. table, chair,etc
- source: wiki-answers.com
Having read other posts and threads regarding definitions (i.e., jealousy vs envy, lying vs omission, etc) I looked up the comparison of opacity vs transparency vs translucency. I am of the thought camp who believe in common definitions amongst the group. Call me a word geek if you like. My brain wanted validation and i thought i might save some others the "googling" trip.