alula
英 [əl'jʊlə] 美 [əl'jʊlə]

n.

（鸟类的）小翼羽；

变形

复数：alulae

英英释义

alula[ 'æljulə ]

• n.
  • scalelike structure between the base of the wing and the halter of a two-winged fly

    同义词：calypter

  • tuft of small stiff feathers on the first digit of a bird's wing

    同义词：bastard wingspurious wing

权威例句

Alula
Alula
The function of the alula in avian flight.
Operation of the alula as an indicator of gear change in hoverflies
Alula size signals male condition and predicts reproductive performance in an Arctic-breeding passerine
Resettlement and Famine in Ethiopia: The Villagers' Experience. by Alula Pankhurst
Randler, C. (2001): Field identification of hybrid wildfowl - Geese. Alula 7: 42-48
Mechanisms of competition between Onychocella alula (Hastings) and Antropora tincta (Hastings) on an eastern Pacific rocky shoreline
Vergleichende Untersuchungen zur flugbiologischen Funktion des Daumenfittichs (Alula spuria) bei Vögeln
mirror, a Drosophila homeobox gene in the Iroquois complex, is required for sensory organ and alula formation