a balloon for the visual observation of upper-atmosphere wind currents.
a meteorological balloon used to observe air currents
- Pilot bird
noun 1. a warbler of forest floors in SE Australia, Pycnoptilus floccosus, named from its alleged habit of accompanying the superb lyrebird
noun 1. . noun 1. another term for hardtack
noun 1. a boat carrying pilots to or from large ships.
[hahrd-tak] /ˈhɑrdˌtæk/ noun 1. a , saltless biscuit, formerly much used aboard ships and for army rations. noun 1. . /ˈhɑːdˌtæk/ noun 1. a kind of hard saltless biscuit, formerly eaten esp by sailors as a staple aboard ship Also called pilot biscuit, ship’s biscuit, sea biscuit noun 1. another term for hardtack n. 1836, […]