남성 또는 여성의 이름으로, 주로 시드니(Sidney, Sydney)의 애칭으로 쓰임.
A given name for males or females, frequently used as a shortened form of Sidney or Sydney.
예문:
"Sid was always the first one to arrive at the office every morning."
"She introduced herself as Sid, though her full name was Sidney."
태양 플레어에 의해 지구 상층 대기의 이온화 밀도가 급격히 변하여 무선 통신에 장애를 주는 현상.
Sudden Ionospheric Disturbance; an abnormally high ionization density in the ionosphere caused by solar flares, resulting in radio interference.
예문:
"The recent SID event disrupted shortwave radio transmissions across the hemisphere."
"Monitoring SID is crucial for maintaining stable satellite communications during solar peaks."