![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
The sequence of numbers in which each number is the sum of the two preceding numbers..
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
The relationship between two numbers in the fibonacci sequence. The sequence for the first three.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
A law of chemistry and physics: the rate of diffusion of one substance in another is proportional to the negative gradient of the concentration of the first substance.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
Wash trading, bucketing, cross trading, or other types of trade to give the appearance of trading.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
A block of wood or iron, placed through the hole in the heel of a mast, and resting on the trestle-trees of the mast below. This supports the mast. Also, a wooden pin, tapered, used in splicing large ropes, in opening eyes, etc.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
A double block where the two sheaves lie in a plane one below the other, rather than alongside each other.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
A sailor's paradise where amusements were plentiful, and the women were accommodating.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
A partially raised deck over the engine and boiler rooms, always around the smokestack, to let the hot air and fumes escape.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
Small hatch in the fidley deck around the stack and uptakes. Generally closed by grating and steel covers.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
A point (or line) on a scale used for reference or comparison purposes. In calibration of meteorological thermometers, for example, the fiducial points are 100
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
That temperature at which, in a specified latitude, the reading of a particular barometer requires no temperature or latitude correction.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
A person entrusted to manage the assets and interests of another. For example, an executor in a.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
The officially designated elevation of an airport above mean sea level, taken as the highest point on any of the runways of the airport. Same as airport elevation.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
The semi-circular steel coupling device mounted on a tractor which engages and locks with a chassis semi-trailer.
![](https://www.marineterms.com/media/com_mtree/images/noimage_thb.png)
A coil of tungsten wire suspended in a vacuum or inert gas-filled bulb. When heated by electricity the tungsten "filament" glows.