Arrange the following words as per their order in the English dictionary and choose the one that comes first:
Elastic; Eldorado; Ejaculate; Electrode

Let's compare the words letter-by-letter to find the dictionary arrangement:
1. All words start with 'E'.
2. Compare the second letters:
* El... (Elastic, Eldorado, Electrode)
* Ej... (Ejaculate)

3. Since 'j' comes before 'l' in the alphabet ($j<l$), Ejaculate will appear first in the English dictionary among all the given options.