caso

• Conj

  if (introduces a condition)

• Noun
• Verb

nova

• Noun

  1. news
  2. nova

• Adj

fórmula química

molecular formula

ou

• Conj

  1. or (connects at least two alternative words, phrases, clauses, sentences, etc. each of which could make a passage true)
  2. or (connects two equivalent names)

• Noun

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)

invenção

1. invention
2. fabrication

mecânica

feminine singular of mecânico

fórmula

1. formula (in all senses)
2. formula