different between agnath vs agnathic

English

Etymology

From Agnatha, from Ancient Greek ?- (a-, “without”) + ?????? (gnáthos, “jaw”).

Pronunciation

• enPR: ?g?n?th, IPA^(key): /?æ?.n??/

Noun

agnath (plural agnaths)

1. (zoology) An agnathan.
   • 1979, Stephen C. Wood, Evolution of Respiratory Processes, Marcel Dekker, ?ISBN, page 218:

     Evolution of vertebrates was accompanied by a gradual increase in oxygen availability, from the irrespirable atmosphere of the Precambrian to a PO? at 7 mmHg with the first vertebrates (agnaths), to the present sea level PO? value of 160 mmHg with the first reptiles.

   • 1996, George Christopher Williams, Adaptation and Natural Selection, Princeton University Press, ?ISBN, page 51:

     The gnathostomes almost entirely replaced the agnaths, presumably because they were more effective fishes.

   • 2002, Harold J. Morowitz, The Emergence of Everything, Oxford University Press, ?ISBN, page 113:

     Thus, although tunicates are presumably intermediate between flatworms and agnaths, the larval tunicate more closely resembles the flatworm and adult agnath.

Anagrams

• ghanta

German

Etymology

Ancient Greek ?- (a-, “without”) + ?????? (gnáthos, “jaw”)

Adjective

agnath (not comparable)

1. (zoology) jawless
   • 1895, H. Henking, “Ueber die Ernährung von Glandina algira L.”, Zoologische Jahrbücher, volume 8, page 87:

     Da die Testacelliden agnath sind, so vermögen sie sich ihrer Beute nur mit Hülfe der Radula zu bemächtigen, indem diese etwas vorgestülpt wird, um ein Eingreifen der Radula-Zähne zu ermöglichen.

   • 1906, “Pisces für 1902”, Archiv für Naturgeschichte, volume 2, issue 1, page 15

     Erörterung der Frage, ob die Ostracodermen agnath oder gnathostom sind.

   • 2004, Rüdiger Wehner and Walter Gehring, Zoologie, twenty-fourth edition, Thieme, ?ISBN, page 809:

     Hypothetisches Ausgangsstadium (agnathes Wirbeltier) mit gleichförmigen Branchialbögen (Kieferbögen).

Declension

Synonyms

• kieferlos

English

Etymology

From Ancient Greek ?- (a-, “without”) + ?????? (gnáthos, “jaw”) +? -ic.

Pronunciation

• (US) IPA^(key): /æ??næ??k/

Adjective

agnathic (not comparable)

1. Jawless.
   • 1980, Thomas Pozorski, “The Early Horizon Site of Huaca de los Reyes: Societal Implications”, American Antiquity, volume 45, page 104:

     […] the heads are inverted and agnathic (lacking a lower jaw) […]

   • 2004, V. B. Rastogi, Modern Biology, seventh edition, Pitambar, ?ISBN, page II-61:

     Mouth is without jaws (agnathic) in lampreys and hagfishes and bounded by jaws (gnathic) in all other vertebrates.

   • 2004, David H. Dye, “Art, Ritual, and Chiefly Warfare in the Mississippian World”, Hero, Hawk, and Open Hand, Art Institute of Chicago, ?ISBN, page 201:

     Mortal combat and decapitation are suggested by the eight skillfully and gracefully engraved heads depicted here with their serrated necks, the prominent arrowheads, and the agnathic or jawless head regalia.

2. (pathology) Afflicted by or characteristic of agnathia.
   • 1902, Bertram C. A. Windle, “Twelfth Report on Recent Teratological Literature”, Journal of Anatomy and Physiology, volume 36, page 303:

     […]an imperforate pharynx which existed in an agnathic lamb.

   • 1913, John H. Musser, A Practical Treatise on Medical Diagnosis for Students and Physicians, sixth edition, Lea & Febiger, page 87:

     In the mouth: various irregularities, such as wide separation of the teeth; abnormal development of the canines; the prognathic or agnathic jaw; high arching of the palate; cleft palate—all are found more frequently among persons otherwise degenerate than in normal individuals.

   • 2006, Karen Gripp and Luis Fernando Escobar, “Facial Bones”, Human Malformations and Related Anomalies, second edition, Oxford University Press, ?ISBN, page 287:

     Most pregnancies with agnathic fetuses are associated with polyhydramnios, which probably result from fetal inability to swallow because of persistence of the oropharyngeal membrane.

Synonyms

• (jawless): agnathous, jawless
• (afflicted by agnathia): agnathous

Related terms

• agnath
• agnatha
• agnathan
• agnathia

Translations

Anagrams

• Ch'ang-t'ai, Changtai