velamen
英 [vɪ'leɪmen] 美 [vɪ'leɪmen]

n.

膜，帆，根被；

变形

复数：velamina

英英释义

Velamen

• Velamen is a spongy, multiple epidermis that covers the roots of some epiphytic or semi-epiphytic plants, such as orchid and Clivia species.

以上来源于:Wikipedia

权威例句

Velamen
velamen
Velamen
Velamentous insertion of the cord in the first trimester
Velamentous insertion of the cord in the first trimester
Velamen radicum micromorphology and classification of Orchidaceae
Velamentous cord insertion in monochorionic twin gestation. An added risk factor
The role of velamentous cord insertion in the etiology of twin-twin transfusion syndrome
SHOOTLESSNESS, VELAMENTOUS ROOTS, AND THE PRE‐EMINENCE OF ORCHIDACEAE IN THE EPIPHYTIC BIOTOPE
Perinatal diagnostic evaluation of velamentous umbilical cord insertion: Clinical, doppler, and ultrasonic findings