Is it der, die oder das Brechungsindex?
The correct article in German of Brechungsindex is der. So it is der Brechungsindex! (nominative case)
The word Brechungsindex is masculine, therefore the correct article is der.
Finding the right gender of a noun
German articles are used similarly to the English articles,a and the. However, they are declined differently (change) according to the number, gender and case of their nouns.
In the German language, the gender and therefore article is fixed for each noun.
The most difficult part of learning the German language is the articles (der, die, das) or rather the gender of each noun. The gender of each noun in German has no simple rule. In fact, it can even seem illogical. For example das Mädchen, a young girl is neutral while der Junge, a young boy is male.
It is a good idea to learn the correct article for each new word together - even if it means a lot of work. For example learning "der Hund" (the dog) rather than just Hund by itself. Fortunately, there are some rules about gender in German that make things a little easier. It might be even nicer if these rules didn't have exceptions - but you can't have everything! The best way to learn them is with the App - Der-Die-Das Train! (available for iOS and Android)
German nouns belong either to the gender masculine (male, standard gender) with the definite article der, to the feminine (feminine) with the definite article die, or to the neuter (neuter) with the definite article das.
for masculine: points of the compass, weather (Osten, Monsun, Sturm; however it is: das Gewitter), liquor/spirits (Wodka, Wein, Kognak), minerals, rocks (Marmor, Quarz, Granit, Diamant);
for feminine: ships and airplanes (die Deutschland, die Boeing; however it is: der Airbus), cigarette brands (Camel, Marlboro), many tree and plant species (Eiche, Pappel, Kiefer; aber: der Flieder), numbers (Eins, Million; however it is: das Dutzend), most inland rivers (Elbe, Oder, Donau; aber: der Rhein);
for neutrals: cafes, hotels, cinemas (das Mariott, das Cinemaxx), chemical elements (Helium, Arsen; however it is: der Schwefel, masculine elements have the suffix -stoff), letters, notes, languages and colors (das Orange, das A, das Englische), certain brand names for detergents and cleaning products (Ariel, Persil), continents, countries (die artikellosen: (das alte) Europa; however exceptions include: der Libanon, die Schweiz …).
German declension of Brechungsindex?
How does the declension of Brechungsindex work in the nominative, accusative, dative and genitive cases? Here you can find all forms in the singular as well as in the plural:
|1||Singular||Plural 1||Plural 2||Plural 3|
|Nominative||der Brechungsindex||die Brechungsindexe||die Brechungsindizes||die Brechungsindices|
|Genitive||des Brechungsindex des Brechungsindexes||der Brechungsindexe||der Brechungsindizes||der Brechungsindices|
|Dative||dem Brechungsindex||den Brechungsindexen||den Brechungsindizes||den Brechungsindices|
|Akkusative||den Brechungsindex||die Brechungsindexe||die Brechungsindizes||die Brechungsindices|
What is the meaning of Brechungsindex in German?
Brechungsindex is defined as:
 Physics: Measure for the light fraction on the interface between a transparent medium and the vacuum Physik: Maß für die Lichtbrechung an der Grenzfläche zwischen einem transparenten Medium und dem Vakuum
How to use Brechungsindex in a sentence?
Example sentences in German using Brechungsindex with translations in English.
 Diamant hat einen höheren Brechungsindex als Glas. Diamond has a higher refrigeration index than Glasä
How do you pronounce Brechungsindex?
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