plural of Sabbath observance

plural of observational error

(statistics) The difference between a measured value of a quantity and its true value.

(humorous) A variation of Murphy's law, which states that the other line (such as at a stand or a store) always moves faster.

(humorous) A variation of Murphy's law, which states that the other line (such as at a stand or a store) always moves faster.

(meteorology) A method of winds-aloft observation, temperature, and relative humidity of the upper that is, the determination of wind speeds and air and to automatically transmit that directions in the atmosphere above a station. This is done by reading the elevation and azimuth angles of a theodolite (instrument) observation while visually tracking a pilot balloon. The ascension rate of the balloon is approximately determined by careful inflation to a given total lift. After release from the ground, periodic readings (usually at one-minute intervals) of elevation and azimuth angles of the balloon are recorded. These data are transferred to a winds-aloft plotting board, and wind speed and direction at selected levels are calculated by trigonometric methods.

plural of pilot balloon observation

(archaic) third-person singular simple present indicative form of observe

In a way that is observed.

The office or work of an observer.