a spot of light on a radar screen, showing the position of a reflecting surface, such as an airplane or ship.
"this sense is also used metaphorically to mean a barely perceptible object; , Kennedy's candidacy was a mere blip on Humphrey's radar screen until he won the West Virginia primary. This is the probably origin of sense 3."
[WordNet 1.5]
a short upward or downward deviation from a trend line on a graph, especially in a plot of some variable, such as an economic variable, against time; as, a brief blip upward in the unemployment rate. [PJC]
something small or insignificant. [PJC]
a brief interruption in the continuity of a recorded or transmitted signal; as, there is a blip on my CD of Beethoven's ninth. [PJC]
blip, n. & v.
--n.
1 a quick popping sound, as of dripping water or an electronic device.
2 a small image of an object on a radar screen.
--v. (blipped, blipping)
1 intr. make a blip.
2 tr. strike briskly.