WordReference English-Spanish Dictionary © 2014:

Principal Translations
aproximadamente advadverbio: Describe al verbo, al adjetivo o a otro adverbio ("corre rápidamente", "sucede ahora", "muy extraño"). (cerca de, alrededor de)approximately, about advadverb: Describes a verb, adjective, adverb, or clause--for example, "come quickly," "very rare," "happening now," "fall down."
  around advadverb: Describes a verb, adjective, adverb, or clause--for example, "come quickly," "very rare," "happening now," "fall down."
  roughly advadverb: Describes a verb, adjective, adverb, or clause--for example, "come quickly," "very rare," "happening now," "fall down."
 Aproximadamente a diez kilómetros encontrarás el desvío.
 You'll come to the detour after about 10 km.
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WordReference English-Spanish Dictionary © 2014:

Compound Forms:
aproximadamente en los meses de around the months of, approximately in the months of
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'aproximadamente' found in these entries
In the Spanish description:
English:

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