different between quasar vs lacertid

English

Etymology

Blend of quasi- +? stellar, from quasi-stellar radio source. Coined by American astrophysicist Hong-Yee Chiu in 1964 in an article in Physics Today.

Pronunciation

• (UK) IPA^(key): /?kwe?.z??/
• (US) IPA^(key): /?kwe?.z??/

Noun

quasar (plural quasars)

1. (astronomy) An extragalactic object, starlike in appearance, that is among the most luminous and (putatively) the most distant objects in the universe.

Synonyms

• Q
• QSO, quasi-stellar object
• (dated) QSR, quasi-stellar radio-source
• (obsolete) QSS, quasi-stellar source
• (obsolete) BSO, blue stellar object

Derived terms

• microquasar

Translations

See also

• AGN, active galactic nucleus
• active galaxy
• pulsar
• RIQ, RLQ, RQQ

French

Etymology

Borrowing from English quasar

Pronunciation

• IPA^(key): /kwa.za?/, /ka.za?/

Noun

quasar m (plural quasars)

1. quasar

References

• “quasar” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Portuguese

Noun

quasar m (plural quasares)

1. (astronomy) quasar (an extragalactic object)

Romanian

Etymology

From English quasar.

Noun

quasar m (plural quasari)

1. quasar

Declension

English

Etymology 1

From translingual Lacertidae.

Noun

lacertid (plural lacertids)

1. Any lizard of the family Lacertidae.
   • 1993, George R. Zug, Herpetology: An Introductory Biology of Amphibians and Reptiles, page 427,

     Lacertid scalation and body forms are similar to those of the teiids, although lacertids are usually smaller.

   • 2004, Daniel A. Greenberg, Lizards, page 33,

     Lacertids are distinguished by a section of large, flat scales on the undersides of their necks. […] Teiids are the New World counterparts to lacertids.

   • 2006, Eric R. Pianka, Laurie J. Vitt, Lizards: Windows to the Evolution of Diversity, page 206,

     Lacertid teeth are hollow at the base (teiid teeth are solid). Virtually all lacertids are terrestrial or rock-dwelling lizards, although a few species, including Holaspis and Takydromus, climb in vegetation, and at least one species appears to live high in trees.

Synonyms

• (lizard of family Lacertidae): lacerta, true lizard, wall lizard

Etymology 2

From the name of the first discovered example, BL Lacertae.

Alternative forms

• BL Lacertid
• Lacertid

Noun

lacertid (plural lacertids)

1. (astronomy) A type of blazar (highly variable active galactic nucleus) that lacks spectral emission lines characteristic of quasars.
   • 1975 July 10, Quasars and Lacertids show a family likeness, New Scientist, page 61,

     In the same diagram a compact galaxy, 3C 371, and a Seyfert, 3C 120, lie very close to the Lacertids.

   • 1990, Bulletin of the Special Astrophysical Observatory-North Caucasus, Volumes 24-26, page 67,

     These reliably variable objects included three ROCOSs (OE 400, OI 090.4, and PI034-293) and two lacertids (AO 0235+164 and OJ 287).

   • 1993, Astronomy Reports, Volume 37, Pages 329-688, American Institute of Physics, page 466,

     We have identified six radio sources in the Zelenchuk (RATAN-600) catalog with two quasars, two lacertids, and two pairs of galaxies.

Synonyms

• (astronomical object): active galactic nucleus, blazar, BL Lac object, BL Lacertae object

Anagrams

• articled