| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Libration | Small oscillations of a celestial body about its mean position. The term is used mainly to mean the Moon's libration caused by the apparent wobble of the Moon as it orbits the Earth. The Moon always k eeps the same side toward the Earth, but due to libration, 59% of the Moon's surface can be seen over a period of time. This results from three kinds of libration working in combination: libration in longitude, libration in latitude, and diurnal libration. | Ryan McGranaghan | 2023.04.16 |
| Libration of the moon | No definition provided | Christopher Rauch | 2023.12.01 |
| Librettos | No definition provided | Christopher Rauch | 2023.12.01 |
| Libyan languages | No definition provided | Christopher Rauch | 2023.12.01 |
| Lice | No definition provided | Christopher Rauch | 2023.12.01 |
| License system | No definition provided | Christopher Rauch | 2023.12.01 |
| Licensing of dogs | No definition provided | Christopher Rauch | 2023.12.01 |
| lichen | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Lichens | No definition provided | Christopher Rauch | 2023.12.01 |
| Licorice | No definition provided | Christopher Rauch | 2023.12.01 |
| lidar | LIDAR (Light Detection and Ranging) is an optical remote sensing technology that measures properties of scattered light to find range and/or other information of a distant target. The prevalent method to determine distance to an object or surface is to use laser pulses. Like the similar radar technology, which uses radio waves instead of light, the range to an object is determined by measuring the time delay between transmission of a pulse and detection of the reflected signal. LIDAR technology has application in archaeology, geography, geology, geomorphology, seismology, remote sensing and atmospheric physics. | Ryan McGranaghan | 2023.04.16 |
| Lidar | Light detection and ranging. See laser altimeter. | GCW Glossary | 2023.03.27 |
| Lidar | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Liddicoatite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Liebauite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Liebenbergite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Liebigite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Liens | No definition provided | Christopher Rauch | 2023.12.01 |
| Lievrite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Life | No definition provided | Christopher Rauch | 2023.12.01 |