Definition of APPARATUS


Apparatus functions primarily as a noun, referring to a complex set of equipment, machinery, or instruments designed for a specific purpose or task. It encompasses the tools, devices, and systems used in various fields such as science, engineering, medicine, and industry to perform specific functions or operations.

Noun – Equipment or Machinery: As a noun, apparatus denotes the physical components or machinery comprising a system or mechanism designed to achieve a particular objective. It may include instruments, tools, machines, or structures arranged in a coordinated manner to facilitate the execution of tasks or processes.

Noun – Scientific Instruments: In scientific contexts, apparatus refers to specialized instruments or apparatuses used in experimental research, observation, or measurement. These may range from simple laboratory tools such as beakers and microscopes to sophisticated devices like particle accelerators or spectrometers employed in advanced scientific investigations.

Noun – Medical Devices: In medical settings, apparatus encompasses a wide range of equipment, devices, and instruments used in diagnosis, treatment, monitoring, or surgical procedures. This includes diagnostic imaging machines, surgical tools, life support systems, and other medical apparatuses essential for patient care and medical research.

Noun – Industrial Machinery: Apparatus also encompasses the machinery, equipment, and systems employed in industrial processes, manufacturing, and production. This may include assembly lines, processing equipment, automation systems, and other apparatuses used in factories, refineries, and manufacturing facilities to produce goods or materials.

In conclusion, apparatus is a noun that refers to the equipment, machinery, or instruments utilized in various fields for specific purposes or tasks. Whether in scientific research, medical practice, industrial production, or other domains, apparatuses play a crucial role in facilitating processes, experiments, and operations. Their design, functionality, and efficiency contribute to the effectiveness and success of endeavors across diverse disciplines, underscoring the importance of specialized tools and equipment in advancing knowledge, technology, and innovation.

Examples of APPARATUS in a sentence

  • The laboratory apparatus included glassware, beakers, and test tubes for conducting experiments.
  • Firefighters wear protective gear and use specialized apparatus such as hoses and ladders to extinguish fires.
  • The respiratory apparatus consists of the nose, trachea, and lungs, facilitating the exchange of oxygen and carbon dioxide.
  • A complex network of apparatus within the cell regulates cellular processes and maintains homeostasis.
  • The gymnast demonstrated incredible strength and agility on the gymnastics apparatus, including the bars, beam, and vault.
  • The laboratory was equipped with state-of-the-art apparatus for conducting experiments.
  • Firefighters arrived at the scene with their firefighting apparatus ready to extinguish the blaze.
  • The gymnastics competition required specialized apparatus such as the balance beam and uneven bars.

Etymology of APPARATUS

The term apparatus has a diverse etymological background, tracing its origins through Latin and Greek.

  • Latin Roots: Apparatus originates from the Latin word “apparatus,” which is the past participle of “apparare,” meaning “to prepare” or “to make ready.” In Latin, “apparatus” referred to equipment, tools, or preparations made for a particular purpose.
  • Greek Influence: The Latin word “apparatus” is closely related to the Greek word “apparatos,” which also denotes preparation or arrangement. In Greek, “apparatos” referred to being fully prepared or fully equipped.
  • Transition to Modern Usage: Over time, the term apparatus evolved to encompass a wide range of meanings, including equipment, machinery, instruments, or systems used for specific purposes, particularly in scientific, technical, or industrial contexts.

From its Latin and Greek origins through its evolution into modern usage, the term apparatus embodies the concept of preparation, equipment, or arrangement, reflecting its fundamental role in various fields and disciplines where specialized tools or systems are required.


  • Equipment
  • Device
  • Instrument
  • Machinery
  • Gear
  • Tool
  • System
  • Mechanism


  • Disorganization
  • Disorder
  • Chaos
  • Disarray
  • Unsystematic
  • Dysfunction
  • Mess
  • Confusion


  • Device
  • Equipment
  • Instrument
  • System
  • Mechanism
  • Appliance
  • Machine
  • Gear

🌐 🇬🇧 APPARATUS in other languages

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