Ochre
Ochre
Ochre (pronounced: /ˈoʊkər/), also spelled Ocher, is a natural clay earth pigment which is a mixture of ferric oxide and varying amounts of clay and sand. It ranges in colour from yellow to deep orange or brown. It is also the name of the colours produced by this pigment, especially a light brownish-yellow.
Etymology
The term "ochre" is derived from the Greek word ὤχρα (ōkhra), which translates to "pale yellow". It was first used in English in the late 15th century.
Use in Medicine
In the medical field, ochre is often used in a metaphorical sense to describe the colour of certain symptoms or conditions. For example, in dermatology, an "ochre colour" may refer to the yellow-brown colour of certain skin conditions.
Related Terms
- Ferric Oxide: The main component of ochre, which gives it its characteristic colour.
- Pigment: A material that changes the colour of reflected or transmitted light.
- Dermatology: The branch of medicine dealing with the skin and its diseases.
- Clay: A natural, earthly material that is plastic when wet and hardens when dried and fired, used in making bricks, pottery, and other ceramics.
External links
- Medical encyclopedia article on Ochre
- Wikipedia's article - Ochre
This WikiMD article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski