An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

1) (n) A proposition or situation offering a choice between two or more things only one of which may be chosen.
2) (adj) Offering or expressing a choice. → alternative energy, → alternatively.

Alternative, from → alternate.

Degarine, from degar "other," variant digar, from Mid.Pers. dit, ditikar "the other, the second," O.Pers. duvitiya- "second," Av. daibitya-, bitya- "second," Skt. dvitiya- "second," PIE *duitiio- "second" + suffix -ine.

Energy from a source other than the conventional fossil fuel sources.

→ alternative; → energy.

Statistics: In → significance testing, any hypothesis which differs from the one being tested. A hypothesis alternative to the → null hypothesis is denoted by H₁.

→ alternative; → hypothesis.

In place of, or as an alternative to.

Adverb from → alternative.