| baro- | |
| —combining form | |
| indicating weight or pressure: barometer | |
| [from Greek baros weight; related to Latin gravis heavy] | |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| a chattering or flighty, light-headed person. |
baro- or bar-
pref.
weight; pressure: baroreceptor.