| ̷ ̷ ̷ ̷ at auto- I+| ̷ ̷ ̷ ̷ ̷ ̷ adjective
Etymology: aut- + manual
: of or relating to a railroad signal system in which the signals are operated manually but return to the danger position automatically after a train passes
| ̷ ̷ ̷ ̷ at auto- I+| ̷ ̷ ̷ ̷ ̷ ̷ adjective
Etymology: aut- + manual
: of or relating to a railroad signal system in which the signals are operated manually but return to the danger position automatically after a train passes
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012