a prearranged signal used by vessels, etc., for mutual identification.
| 单词 | θ162167 |
| 释义 | society > armed hostility > military organization > signals > [noun] > signal to identify units or troops (4) recognition signal1863 a prearranged signal used by vessels, etc., for mutual identification. recognition marking1889 (a) Zoology = recognition mark n.; (b) Military a marking on a vehicle, aircraft, etc., by which it can be identified as belonging to a particular… recognition colour1891 (a) Zoology = recognition mark n.; (b) Military = recognition marking n. (b). identification panel1918 an expanse of some material used as a sign to indicate the position of ground troops to friendly aircraft. |
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