semi-lunar BrE
semilunar AmE

Finally there are the two semilunar valves, found at the beginning of the arteries leaving the heart.

Some authors include the semilunar tract in this category.

Blood is then pumped through the semilunar valve and into the pulmonary artery.

The semilunar valves of the heart are associated with neural crest cells according to new research.

Displaced semilunar cartilage, and a three months' job.

The shell aperture is semilunar and a little oblique.

Its upper surface is smooth, concave, and forms the lower part of the semilunar notch.

The aperture is semilunar and usually lacks teeth.

The lateral meniscus is also known as the external semilunar fibrocartilage.

Layer II is densely packed with pyramidal and semilunar cells.

They are sometimes referred to as the semilunar ganglia or the solar ganglia.

The sinus communicates through an opening into the semilunar hiatus on the lateral nasal wall.

Strobilopterus is distinguishable by its outer surface that has pustules and semilunar scales.

Dolichopteridae had outer surfaces that were either smooth or with pustules and semilunar scales.

The lateral surface presents a narrow, flattened, semilunar facet for articulation with the scaphoid.

The maid on the Argos died of a nine-millimeter bullet passing through her aorta and semilunar heart valves.

In neurology, the semilunar fasciculus.

(1) Numerous small vessels supply the semilunar ganglion and the dura mater in this situation.

The neurosetae have semilunar pockets, faintly bifid tips and faint serrations.

This results in the slight increase in aortic pressure caused by the elastic recoil of the semilunar valves and aorta.

Many involve stenosis of the semilunar valves or regurgitation of the atrioventricular valves.

The fourth, "ventricular ejection," is when the ventricles are empty and contracting, and the semilunar valves are open.

Eurypteridae, which lived during the Silurian period, were characterized by small to large exoskeletons with inconspicuous semilunar scales or curved ridges.

The fibrous rings surrounding the arterial orifices serve for the attachment of the great vessels and semilunar valves, they are known as The aortic annulus.