ENGLISH ROOT WORD: astro- from Greek aster, astron, astro

【astro-】 is word -forming element
usually meaning "star, heavenly body, space, space travel"
from Greek "aster, astron, astro"

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[WORD ROOT]root astro
[VARIATIONS OF ROOT] astro, aster
[ETYMOLOGY]root (Greek) aster, astron, astro
[MEANING]root star, heavenly body, space, space travel

【DETAILs OF ORIGIN(ENTYMOLOGY】

• 【Greek】 aster star
• 【Greek】 astron [accusative singular of astro] star
• 【Greek】 astro star

[LIST OF ENGLISH WORD]

Acanthaster, asterisk, asteroid, astral, astrobleme, astrology, astrometry, astronaut, astronomer, astronomy, astrophysics, disaster, disastrous

Please see Word information in detail as follows;

 

 

 

Acanthaster [noun]
【DEFINITION】 Acanthaster is a bitypic genus of large and venomous starfish placed in its own family.
【ROOTs】 ⑴ acanth; thorn ⑵ aster(astro); star, heavenly body, space

asterisk [noun]
【DEFINITION】 An asterisk is the sign *. It is used especially to indicate that there is further information about something in another part of the text.
【pl.】 asterisks
【DERIVATIVEs】 asterisked, asterisk
【ROOTs】 aster(astro); star,

asteroid [noun]
【DEFINITION】 An asteroid is one of the very small planets that move around the sun between Mars and Jupiter.
【PRIMARY MEANING】 one of the planetoids orbiting the sun, found mostly between Mars and Jupiter
【ROOTs】 ⑴ astr(astro); star, ⑵ oid; noun suffix

astral [adjective]
【DEFINITION】 Astral means relating to the stars.
【PRIMARY MEANING】 pertaining to the stars
【DERIVATIVEs】 astrally, astral
【ROOTs】 ⑴ astr(astro); star, ⑵ al; adjective suffix

astrobleme [noun]
【DEFINITION】 a mark on the earth's surface, usually circular, formed by a large ancient meteorite impact
【PRIMARY MEANING】 crypto-explosion structure on Earth caused by meteorite or asteroid impact; (literally) star-wound
【ROOTs】 ⑴ astro; star ⑵ bleme(bol); throw

astrology [noun]
【DEFINITION】 Astrology is the study of the movements of the planets, sun, moon, and stars in the belief that these movements can have an influence on people's lives.
【PRIMARY MEANING】 calculation and foretelling based on observation of heavenly bodies
【pl.】 UNCOUNTABLE NOUN
【DERIVATIVEs】 astrologer, astrological, astrologically, astrologist, astrology
【ROOTs】 ⑴ astro; star, ⑵ log; word, discourse

 

 

 

astrometry [noun]
【DEFINITION】 the branch of astronomy concerned with the measurement of the position and motion of celestial bodies
【pl.】 UNCOUNTABLE NOUN
【DERIVATIVEs】 astrometric, astrometrical, astrometry
【ROOTs】 ⑴ astro; star, ⑵ metr(meter); measure ⑶ y; noun suffix

astronaut [noun]
【DEFINITION】 An astronaut is a person who is trained for travelling in a spacecraft.
【PRIMARY MEANING】 space-traveler
【pl.】 astronauts
【ROOTs】 ⑴ astro; star, ⑵ naus(naut); sailor

astronomer [noun]
【DEFINITION】 An astronomer is a scientist who studies the stars, planets, and other natural objects in space.
【DERIVATIVEs】 astronomer, astronomical, astronomy
【ROOTs】 ⑴ astro; star ⑵ nom(nomy); law, system of laws ⑶ er; noun suffix

astronomy [noun]
【DEFINITION】 Astronomy is the scientific study of the stars, planets, and other natural objects in space.
【PRIMARY MEANING】 astronomy, astrology, scientific or occult study of heavenly bodies
【pl.】 UNCOUNTABLE NOUN
【DERIVATIVEs】 astronomer, astronomical, astronomically, astronomy
【ROOTs】 ⑴ astro; star ⑵ nomy; law, system of laws

astrophysics [noun]
【DEFINITION】 Astrophysics is the study of the physical and chemical structure of the stars, planets, and other natural objects in space.
【pl.】 UNCOUNTABLE NOUN
【DERIVATIVEs】 astrophysical, astrophysicist, astrophysicsist, astrophysics
【ROOTs】 ⑴ astro; star ⑵ phys(physi); nature ⑶ ics; adjective suffix

disaster [noun]
【DEFINITION】 A disaster is a very bad accident such as an earthquake or a plane crash, especially one in which a lot of people are killed.
【PRIMARY MEANING】 anything that befalls of ruinous or distressing nature; any unfortunate event
【pl.】 disasters
【DERIVATIVEs】 disaster, disastrous, disastrously
【SYNONYM】 catastrophe
【ROOTs】 ⑴ dis; away, spart, apart ⑵ aster(astro); star

disastrous [adjective]
【DEFINITION】 A disastrous event has extremely bad consequences and effects.
【DERIVATIVEs】 disaster, disastrous, disastrously
【SYNONYM】 catastrophic, devastating
【ROOTs】 ⑴ dis; away, spart, apart ⑵ astr(astro); star ⑶ ous; adjective suffix

Other word list containing astro-; diasterismgeaster, monaster

 

 

 

【OTHER ROOTs; 】
abba-
acu-
aero
aev
ag
ante
agog
arch, archi, archy
arc-, arch-
astro-

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