adventitious

/,ædven'tiʃəs/

Thân thiện

The botanist observed adventitious roots growing from the plant's stem.

Definition

1. Adjective:
   • Happening or carried on according to chance rather than design or inherent nature; accidental. Describes something that is added from an external source, not inherent or essential.
   • Biology/Medicine: Appearing in an unusual or abnormal place. Describes structures, roots, or sounds that are not normally present in a particular location.

Usage

The word "adventitious" is formal and is primarily used in academic, scientific, or literary contexts. It describes qualities, events, or elements that are not part of the essential, intrinsic, or original nature of something. It often implies something is superficial, added by circumstance, or occurring by chance.

Examples

• General/Formal Use:
  • The funding was adventitious; it came from an unexpected donor and was not part of our planned budget.
  • His fame was largely adventitious, resulting more from scandal than from talent.
• Scientific/Biological Use:
  • Ivy has adventitious roots that grow from its stems to attach to walls.
  • The doctor detected adventitious breath sounds, like crackles, in the patient's lungs.

Advanced Usage

• "adventitious to": Not an inherent or necessary part of.
  • The ornamentation is entirely adventitious to the structure's primary function.
• Used to describe non-inherited traits or acquired characteristics in biology.

Variants and Related Words

• Adventitiously (adverb): In an adventitious manner; by chance.
  • The species was introduced adventitiously through shipping containers.
• Adventitiousness (noun): The quality of being adventitious.

Synonyms

• Accidental: Happening by chance.
• Fortuitous: Happening by a lucky chance.
• Incidental: Occurring as a minor consequence.
• Extrinsic: Not part of the essential nature.

Antonyms

• Inherent: Existing as a permanent, essential characteristic.
• Intrinsic: Belonging naturally; essential.
• Innate: Inborn; natural.
• Integral: Necessary to make a whole complete.

Related Phrases/Idioms

Note: "Adventitious" itself is not commonly used in idioms. Its meaning is expressed in formal phrases. - Adventitious circumstances: External, chance conditions affecting a situation. - Adventitious growth: Biological growth in an atypical location.

Học thuật

Adjective

1. associated by chance and not an integral part
   • poetry is something to which words are the accidental, not by any means the essential form- Frederick W. Robertson
   • they had to decide whether his misconduct was adventitious or the result of a flaw in his character