Definition

1. Noun:
   • A subordinate clause that describes or gives additional information about a noun phrase without restricting its meaning: A descriptive clause provides extra details about a noun but is not essential for identifying which specific noun is being referred to. It is typically set off by commas.

Usage

• A descriptive clause is used to add non-essential, descriptive information to a sentence. It is also commonly called a non-restrictive or non-defining clause.
• It modifies a noun phrase by offering supplementary details, often introduced by relative pronouns like , , or .
• The clause is separated from the main clause by commas, indicating that the information is additional.

Examples

• Noun:
  • My brother, who lives in Canada, is visiting next week. (The clause "who lives in Canada" is a descriptive clause providing extra information about "my brother"; it is not needed to identify which brother, as "my brother" is already specific.)
  • The conference, which was held online, attracted thousands of participants. (The clause "which was held online" is a descriptive clause adding detail about "the conference"; it does not define which conference.)
  • The old house, whose roof was damaged, has been repaired. (The clause "whose roof was damaged" is a descriptive clause giving more information about "the old house".)

Advanced Usage

• Punctuation Importance: The commas are crucial. Omitting them can change the meaning to a restrictive (defining) clause, which is essential for identifying the noun.
  • Compare: The students who passed the test were happy. (Restrictive clause: identifies which students.) vs. The students, who passed the test, were happy. (Descriptive clause: adds that all the students, who are already a defined group, passed the test.)
• Use with "which" vs. "that": In formal English, is typically used to introduce descriptive clauses, while is used for restrictive clauses. However, in informal usage, this distinction is sometimes blurred.

Variants and Related Words

• Non-restrictive clause (n): A synonym for descriptive clause.
• Non-defining clause (n): Another synonym for descriptive clause.
• Restrictive clause (n): The opposite type of clause, which is essential for defining the noun it modifies and is not set off by commas.
  • Example: The book that you recommended is excellent. (The clause "that you recommended" is restrictive; it specifies which book.)

Synonyms

• Non-restrictive clause: A subordinate clause that adds non-essential information.
• Non-defining clause: A clause that provides extra description without limiting the noun's reference.

Related Phrases

• Parenthetical expression: A word or phrase inserted as an explanation or afterthought, often set off by commas, dashes, or parentheses, similar in function to a descriptive clause in providing extra information.
  • Example: The results, as you can see, are conclusive.

Noun

1. a subordinate clause that does not limit or restrict the meaning of the noun phrase it modifies