ˈunder-sphere,n. (under-1 5 b.) 1630Drummond of Hawthornden Shadow of Judgem. 4 The..Raine-bow-sparkling Arch of Diamond cleare Which crownes the azure of each vnder spheare.c1631Sir L. Cary Elegy on Donne 86 He conquer'd rebell passions, rul'd them so, As under-spheares by the first Mover goe.