| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,724,534,809 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
spicule |
Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson | 0.01 sec. |
|
spicule /spic·ule/ (spik´ūl) a sharp, needle-like body.
spicule [spik′yo̅o̅l] Etymology: L, spiculum, point a small sharp body with a needlelike point. spicule (spik´ūl), n a small needle-shaped body. spicule 1. a sharp, needle-like body or spike. 2. part of the male genital apparatus in nematodes; they engage the female genital orifice during copulation. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
To look for evidence of the planet's effect on HD 179949, Shkolnik's team used the Canada-France-Hawaii Telescope on Hawaii's Mauna Kea to record ultraviolet light emitted by calcium ions in the star's chromosphere, a thin layer of gas just above its visible surface. Astronomers had viewed the chromosphere as a relatively uniform blanket of gas with a temperature of between 5,000 and 7,000 kelvins. During that time, protons andelectrons that leak out of the trap can rain down upon atoms in the chromosphere and spark the emission of gamma rays, he says. |
| Medical Dictionary |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|