light signals; flashing light communication
Tone colorsmāmámǎmàma
Meanings
1 sense · 3 examplesnoun
a method of communication using patterns of light flashes
formalHistorically used by ships, lighthouses, and in military contexts (e.g., Morse code with light). Less common in the age of radio but still a recognized term.
Zài在
wú无
xiàn线
diàn电
fā发
míng明
qián前
，
chuán船
yǔ与
chuán船
zhī之
jiān间
cháng常
yòng用
dēng灯
yǔ语
gōu沟
tōng通
。
Before the invention of radio, ships often communicated using light signals.
Dēng灯
tǎ塔
huì会
yòng用
tè特
dìng定
de的
dēng灯
yǔ语
xiàng向
guò过
wǎng往
chuán船
zhī只
fā发
chū出
jǐng警
gào告
。
Lighthouses use specific light signals to warn passing ships.
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Zhēn侦
chá察
bīng兵
zài在
yè夜
jiān间
yòng用
dēng灯
yǔ语
chuán传
dì递
le了
qíng情
bào报
。
The scouts transmitted intelligence using light signals at night.