English Dictionary

chasma

IPA（発音記号）

/ˈkazmə/

名詞

廃用 稀用 別表記

(astronomy, geology) A long, narrow, steep-sided depression on a planet (often other than Earth), a moon, or another body in the Solar System. / (astronomy, obsolete, rare) An aurora.

日本語の意味

（天文学、地質学）惑星、月、またはその他太陽系内の天体に見られる、細長く急峻な側面を持つ陥没部または低地。 / （天文学、時代遅れ、希少な用法）オーロラ。

Scientists mapped a deep Martian chasma that could reveal the planet's geological history.

科学者たちは、火星にある深い峡谷を地図化し、それが惑星の地質学的歴史を明らかにする可能性があると示した。

意味（1）

(astronomy, geology) A long, narrow, steep-sided depression on a planet (often other than Earth), a moon, or another body in the Solar System.

The most prominent tectonic feature on Tethys is the globe-girdling Ithaca Chasma, which is 60 to 100 km wide, 3–4 km deep, and can be traced through at least 270° of a rough great circle (Smith et al, 1982; Moore & Ahern, 1983). […] Odysseys Tangent Chasma. A prominent chasma 60–80 km wide and at least 800 km long (90° arc), visible in 80.27, is tangent to the rim of Odysseus, trending about 10° east of north. The chasma intersects a ridge-bounded trough radial to Odysseus […] and is then lost in the zone around the North Pole that is shadowed in all of the extant images.

意味（2）

(astronomy, obsolete, rare) An aurora.

Thus Cornelius Gemma, Professor of Medicine in Louvain, mentions them [the aurora borealis] under the name of chasma, as appearing in Brabant on the 13th February and 28th September, 1575.

意味（3）

Obsolete form of chasm.

chasmas （ plural ）

chasmata （ plural ）