il

1. he (third-person singular masculine subject pronoun for human subject)
2. it (third-person singular subject pronoun for grammatically masculine objects)
3. Impersonal subject; it

existe

1. inflection of exister:
2. inflection of exister:

plusieurs

several, many, a lot

types

plural of type

de

• Prep

  1. of (expresses belonging)
  2. of (used to express property or association)
  3. from (used to indicate origin)
  4. of (indicates an amount)
  5. used attributively, often translated into English as a compound word
  6. from (used to indicate the start of a time or range)
  7. used after certain verbs before an infinitive, often translated into English as a gerund or an infinitive
  8. by (indicates the amount of change)

• Article
• Noun

transport

transport

membranaire

membrane; membranal