low(redirected from Low, Sir David (Alexander Cecil))
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1. Biology not advanced in evolution
2. of relatively small price or monetary value
3. Music relating to or characterized by a relatively low pitch
4. (of latitudes) situated not far north or south of the equator
5. (of a gear) providing a relatively low forward speed for a given engine speed
6. of or relating to the Low Church
7. Meteorology an area of relatively low atmospheric pressure, esp a depression
8. Electronics the voltage level in a logic circuit corresponding to logical zero
Sir David. 1891--1963, British political cartoonist, born in New Zealand: created Colonel Blimp
A region of relatively low pressure depicted by more or less circular and concentric isobars surrounding the center where the pressure is the lowest. The size of the low circulation may be as few as tens of yards (meters) as in a tornado, or it may be a few hundred miles (kilometers) as in a cyclone. A low is the first stage of a developing weather system. With deepening of the system, it becomes a depression, and, with further growth, it can form into a cyclone. In a low, the associated winds are up to 17 knots; in a depression, the speeds are from 17 to 27 knots; and, in a deep depression, they are up to 33 knots.