terrain flight
low level flight | flight at very low altitudes |
quarterback
signal caller
field general | (American football) the position of the football player in the backfield who directs the offensive play of his team, quarterback is the most important position on the team |
blood-oxygenation level dependent functional magnetic resonance imaging
BOLD FMRI | functional magnetic resonance imaging that relies on intrinsic changes in hemoglobin oxygenation |
| Abney level | a surveying instrument consisting of a spirit level and a sighting tube, used to measure the angle of inclination of a line from the observer to the target |
| carpenter's level | a straight bar of light metal with a spirit level in it |
| Dumpy level | a surveyor's level having a short telescope fixed to a horizontally rotating table and a spirit level |
floor level storey
story | a structure consisting of a room or set of rooms at a single position along a vertical scale, what level is the office on? |
ground floor
first floor
ground level | the floor of a building that is at or nearest to the level of the ground around the building |
horizontal surface
level | a flat surface at right angles to a plumb line, park the car on the level |
level
spirit level | indicator that establishes the horizontal when a bubble is centered in a tube of liquid |
level crossing
grade crossing | intersection of a railway and a road on the same level, barriers close road when trains pass |
| mason's level | a level longer than a carpenter's level |
| plumb level | a carpenter's level with a plumb line at right angles to it |
signal box
signal tower | a building from which signals are sent to control the movements of railway trains |
| surveyor's level | surveying instrument consisting basically of a small telescope with an attached spirit level rotating around a vertical axis, for measuring relative heights of land |
| water level | a water gauge that shows the level by showing the surface of the water in a trough or U-shaped tube |
luminosity
brightness brightness level
luminance
luminousness
light | the quality of being luminous, emitting or reflecting light, its luminosity is measured relative to that of our sun |
degree
grade
level | a position on a scale of intensity or amount or quality, a moderate grade of intelligence, a high level of care is required, it is all a matter of degree |
| amplitude level | the level on a scale of amplitude |
| signal level | the amplitude level of the desired signal |
noise level
background level | the amplitude level of the undesired background noise |
| intensity strength intensity level | the amount of energy transmitted (as by acoustic or electromagnetic radiation), he adjusted the intensity of the sound, they measured the station's signal strength |
| threshold level | the intensity level that is just barely perceptible |
acoustic power
sound pressure level | the physical intensity of sound |
utmost
uttermost
maximum
level best | the greatest possible degree, he tried his utmost |
| level | height above ground, the water reached ankle level, the pictures were at the same level |
| grade ground level | the height of the ground on which something stands, the base of the tower was below grade |
| water level | the level of the surface of a body of water |
| sea level | level of the ocean's surface (especially that halfway between mean high and low tide), used as a standard in reckoning land elevation or sea depth |
level
layer
stratum | an abstract place usually conceived as having depth, a good actor communicates on several levels, a simile has at least two layers of meaning, the mind functions on many strata simultaneously |
signal detection
detection | the detection that a signal is being received |
| high-level formatting | (computer science) the format for the root directory and the file allocation tables and other basic configurations |
low-level formatting
initialization
initialisation | (computer science) the format of sectors on the surface of a hard disk drive so that the operating system can access them and setting a starting position |
price index
price level | an index that traces the relative changes in the price of an individual good (or a market basket of goods) over time |
signal
signaling
sign | any nonverbal action or gesture that encodes a message, signals from the boat suddenly stopped |
starting signal
start | a signal to begin (as in a race), the starting signal was a green light, the runners awaited the start |
| storm signal | a signal announcing the approach of a storm (particularly a storm of marked violence) |
| time signal | a signal (especially electronic or by radio) indicating the precisely correct time |
alarm
alert warning signal
alarum | an automatic signal (usually a sound) warning of danger |
distress signal
distress call | an internationally recognized signal sent out by a ship or plane indicating that help is needed |
reveille
wake-up signal | (military) signal to wake up |
telegraphic signal
radiotelegraphic signal | a signal transmitted by telegraphy |
| visual signal | a signal that involves visual communication |
traffic light
traffic signal
stoplight | a visual signal to control the flow of traffic at intersections |
flag
signal flag | a rectangular piece of fabric used as a signalling device |
code flag
nautical signal flag | one of an international code of flag signals used between ships |
| high-level language | a problem-oriented language requiring little knowledge of the computer on which it will be run |
blinker
turn signal
turn indicator
trafficator | a blinking light on a motor vehicle that indicates the direction in which the vehicle is about to turn |
| electronic signal | a signal generated by electronic means |
signal fire
signal light | a fire set as a signal |