<p><strong>Noun</strong></p><ul><li>Astronomy: the Altar, a southern constellation between Triangulum Australe and Scorpius.</li><li>the egg-sized, edible berry of the Chinese gooseberry, having fuzzy brownish skin and slightly tart green flesh.</li><li>Slang: a member of an air service, as in World War I, who is confined to ground duty.</li><li>a former pilot or member of a flight crew.</li><li>Informal: a New Zealander.</li></ul>