O

The fifteenth letter of the Portuguese alphabet, written in the Latin script.

sistema

1. system
2. (colloquial) Often preceded by the word o (the): system, the mainstream culture, controlled by the elites or government of a state, or a combination of them, seen as oppressive to the individual; the establishment

produção

1. production
2. output, yield
3. (Brazil) the producers or the technical team (including directors, producers, screenwriters and camera operators) behind a radio or television program or a film

de

1. of (in relation to)
2. of (in relation to)
3. of (in relation to)
4. of (in relation to)
5. of (in relation to)
6. of (in relation to)
7. of (in relation to)
8. of (in relation to)
9. of (in relation to)
10. of; -en (made or consisting of)
11. of; -en (made or consisting of)
12. of; -en (made or consisting of)
13. of; -en (made or consisting of)
14. of (introduces the noun that applies a given adjective or past participle)
15. from (born in or coming out of)
16. by means of; by
17. as (in the role of)
18. in (wearing)

nitrogênio

Brazilian standard spelling of nitrogénio.

isolamento

1. insulation (the act of insulating)
2. isolation (state of being isolated)
3. isolation (act of isolating)
4. isolation (state of avoiding diplomatic relations)

acústico

1. acoustic (pertaining to hearing or the science of sounds)
2. acoustic (producing or produced without electrical amplification)

tem

1. inflection of ter: ## third-person singular present indicative ## second-person singular imperative
2. inflection of ter: ## third-person singular present indicative ## second-person singular imperative
3. (Brazil) Misspelling of têm.