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Agency Dictionary

Astronaut

noun

In Portuguese: Astronauta

What does “Astronaut” mean?

A person trained and equipped to travel and operate beyond the atmosphere of the Earth. In space exploration, astronauts perform scientific experiments and navigate spacecraft under extreme conditions.

Etymology

Formed from Greek astron ("star") and nautes ("sailor"), from naus ("ship"), on the model of aeronaut. The related word astronautics, modelled on French astronautique, was in use from the 1920s for the science of space travel. Astronaut itself appeared earlier in fiction and speculation, and became the standard term in the late 1950s, when the United States chose its first space crews.

Synonyms

Often confused with

cosmonaut
Cosmonaut is the term used for crew members of the Soviet and Russian space programmes; astronaut is used for those of the United States and most other countries.

Word family

  • astronautics
  • astronautical

Usage examples

  • losing her helmet would be the first and last step to failing as an astronaut

    Design.2 - Demystifying UX/UI Design Pt.1
  • This bizarre astronaut’s user experience problem kickstarts our first issue about UX/UI.

Source editions

Where this entry comes from in the Agency editorial.

Words of the same theme

Equationnoun
A complex statement or problem involving balancing multiple interdependent factors, variables, or meanings.
Decompositionnoun
The natural biological or chemical process of decay, breakdown, or disintegration into constituent elements.
eppur si muoveother
An Italian phrase meaning and yet it moves. It is used to affirm that a fact remains true no matter who denies it.
Pollinationnoun
The transfer of pollen grains from the male anther to the female stigma of a flower, enabling fertilization and seed production.
Regenerativeadjective
Relating to or capable of renewing, restoring, or reforming biological vitality and structural equilibrium.
syntheticadjective
Produced by artificial or chemical synthesis rather than originating from natural or organic processes.
Anesthetizeverb
To administer an anesthetic to eliminate physical feeling, or figuratively to numb emotional or critical awareness.
Biomenoun
A large naturally occurring community of flora and fauna occupying a major habitat defined by climate and soil.
caffeinenoun
A naturally occurring central nervous system stimulant found in coffee beans, tea leaves, and cacao pods.
cannabisnoun
A genus of flowering plants cultivated for industrial fiber, wellness oils, and medicinal applications.
catalystnoun
A substance or factor that accelerates a chemical reaction or stimulates widespread systemic change without being consumed.
Chacronanoun
The tropical shrub Psychotria viridis whose leaves provide dimethyltryptamine in the preparation of ayahuasca.

Also from these editions: terms

Buttonnoun
A physical or graphical control element that triggers an immediate action or command when pressed or clicked. In software interfaces, buttons communicate system affordances through visual boundaries and labels.
Consumernoun
An individual or group that acquires, purchases, or consumes physical or commercial goods and services for personal use. In marketing, consumers are studied for purchasing patterns and brand preferences.
Screennoun
A flat physical display surface on an electronic device that projects visual images, interfaces, and text to a viewer. It serves as the primary visual output medium for modern personal computers and mobile phones.
wireframenoun
A skeletal visual guide that outlines the basic structure, hierarchy, and functionality of a user interface.
Tangibleadjective
Perceptible by the sense of touch or capable of being physically grasped and measured in concrete physical reality. It distinguishes concrete material products from virtual or intellectual entities.
briefingnoun
A concise set of instructions or background information provided to guide a project or creative assignment.
intangibleadjective
Incapable of being perceived by touch or physical senses, yet possessing recognizable economic or conceptual worth.
Prototypenoun
An early preliminary model of a product from which subsequent forms and manufactured copies are developed and refined.
UX Designnoun
User Experience Design: the discipline focused on the overall experience a person has when interacting with a product, including usability, accessibility, and satisfaction.
Spacesuitnoun
A pressurized protective garment worn by astronauts to survive the harsh vacuum, extreme temperatures, and radiation of outer space. It incorporates life support, thermal insulation, and communications equipment.
Softwarenoun
The complete set of instructions, programs, algorithms, and data that direct a computer hardware system to perform specific tasks. It is intangible, adaptable, and easily updated across network connections.
Layoutnoun
The spatial arrangement and structural distribution of text, images, and visual elements on a printed page or digital screen. It establishes visual order, reading flow, and aesthetic harmony within a composition.

Also from these editions: concepts

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Updated
Cite this entry

“Astronaut”. Agency Wiki, Agency Brasil. Published on November 11, 2026. https://www.agencybrasil.com/en/wiki/dictionary/astronaut