radiogram

/'reidiougræm/

Thân thiện

A doctor examines a radiogram of a patient's hand.

Definition

1. Noun:
   • A photographic image produced by radiation: A picture created on a radiation-sensitive surface using forms of electromagnetic radiation other than visible light, such as X-rays or gamma rays, often used for medical or industrial examination.
   • A message transmitted by wireless telegraphy: A communication, typically a telegram, sent via radio waves rather than through physical wires.

Usage and Examples

• Noun (Medical/Technical Image):
  • The doctor examined the chest radiogram to check for a fracture.
  • The radiogram revealed a small anomaly in the metal structure.
• Noun (Wireless Message):
  • The ship received a distress radiogram from a nearby vessel.
  • In the early 20th century, important news was often sent as a radiogram.

Advanced Usage

• Historical Context: The term for a wireless message is largely historical, associated with early radio communication (e.g., on ships or in wartime). The term for an X-ray image remains in technical use, though "X-ray" or "radiograph" is more common in everyday medical contexts.
• "To send a radiogram": To transmit a message via wireless telegraphy.
  • They sent a radiogram to headquarters requesting supplies.

Variants and Related Words

• Radiograph (n): A more precise technical synonym for a photographic image made with radiation, especially X-rays.
  • The radiograph provided a clear view of the bone density.
• Radiography (n): The technique or process of creating radiographs.
  • She studied radiography to become an X-ray technician.
• Radiogramophone (n, historical/archaic): A combined radio and record player. (Note: "Radiogram" was sometimes a shortened form of this word, but this is a distinct compound term.)

Synonyms

• For the image: X-ray, radiograph, roentgenogram.
• For the message: Wireless telegram, radio telegram, marconigram (a historical term for a radio telegram).

Notes on Different Meanings

The two primary meanings of "radiogram" are distinct and belong to different fields: 1. Medical/Industrial Imaging: Related to radiology and diagnostics. 2. Historical Communications: Related to telecommunications history. The word is rarely used in modern contexts for messaging, having been superseded by digital communication.

Học thuật

Noun

1. a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays)
2. a message transmitted by wireless telegraphy

Từ đồng nghĩa

• radiograph
• shadowgraph
• skiagraph
• skiagram