holograph

/'hɔləgrɑ:f/

Thân thiện

A scientist examines a holograph of a molecule in the laboratory.

Definition

1. Noun:
   • A handwritten document or book: A text that is entirely written by hand by its author, especially a manuscript, letter, or will.
   • A photographic record containing information for reproducing a three-dimensional image: The intermediate photograph produced in holography, which, when illuminated with coherent light, creates a three-dimensional image.

Examples of Usage

• Noun (Handwritten document):

  • The museum acquired a holograph of the poet's early sonnets.
  • The will was declared valid because it was a holograph, signed and dated by the testator.

• Noun (Photographic record):

  • The scientist examined the holograph under laser light to reveal the 3D image.
  • Creating a holograph requires a laser, a beamsplitter, and photographic film.

Advanced Usage

• Legal "holographic will": A will that is entirely handwritten, dated, and signed by the testator, often valid even without witnesses in some jurisdictions.
  • The court accepted the holographic will found in her desk drawer.

Variants and Related Words

• Holographic (adj): Pertaining to or being a holograph.

  • The document's holographic nature was verified by a handwriting expert.
  • We saw a stunning holographic display at the science museum.

• Holography (n): The science or process of making holograms.

  • Holography is used in security features on credit cards and passports.

Synonyms

• Manuscript: A handwritten or typed document, especially an author's original text before publication.
• Hologram: The three-dimensional image produced from a holograph. (Note: In common usage, "hologram" is often used interchangeably with the photographic record itself, though technically the holograph is the recorded medium and the hologram is the resulting image.)

Related Phrases

• In one's own hand: Written by oneself.
  • The letter was in her own hand, confirming it was a holograph.

Học thuật

Noun

1. the intermediate photograph (or photographic record) that contains information for reproducing a three-dimensional image by holography
2. handwritten book or document

Từ đồng nghĩa

• hologram
• manuscript