| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Hellandite (Ce) | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Hellandite (Y) | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Hell--Art | No definition provided | Christopher Rauch | 2023.12.01 |
| Hellebore | No definition provided | Christopher Rauch | 2023.12.01 |
| Hellenism | No definition provided | Christopher Rauch | 2023.12.01 |
| Hellenistic Greek | No definition provided | Christopher Rauch | 2023.12.01 |
| Hellyerite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| helmet streamer | A feature of the white light corona (seen in eclipse or with a coronagraph) that looks like a ray extending away from the Sun out to about 1 solar radius, having an arch-like base containing a cavity usually occupied by a prominence. | Ryan McGranaghan | 2023.04.16 |
| Helmholtz-Kelvin contraction | No definition provided | Ryan McGranaghan | 2023.04.16 |
| helmholtz wave | An unstable wave in a system of two homogeneous fluids with a velocity discontinuity at the interface. | Ryan McGranaghan | 2023.04.16 |
| Helminthology | No definition provided | Christopher Rauch | 2023.12.01 |
| Helmutwinklerite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Helvite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Hematemesis | No definition provided | Christopher Rauch | 2023.12.01 |
| Hematin | No definition provided | Christopher Rauch | 2023.12.01 |
| hematite | Hematite, also spelled as hæmatite, is the mineral form of Iron(III) oxide (Fe2O3), one of several iron oxides. Hematite crystallizes in the rhombohedral system, and it has the same crystal structure as ilmenite and as corundum. Hematite is a mineral, colored black to steel or silver-gray, brown to reddish brown, or red. It is mined as the main ore of iron [Wikipedia] | Ryan McGranaghan | 2023.04.16 |
| Hematocele | No definition provided | Christopher Rauch | 2023.12.01 |
| Hematochyluria | No definition provided | Christopher Rauch | 2023.12.01 |
| Hematolite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Hematology | No definition provided | Christopher Rauch | 2023.12.01 |