externally tangent circles

externally tangent circles

[ek¦stərn·əl·ē ¦tan·jənt ′sər·kəlz]

(mathematics)

Two circles, neither of which is inside the other, that have a single point in common.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.