11-Letter Words Starting UL & Ending S

• An aircraft that weighs very little

• The science and technology of ultrasound

• a circumscribed inflammatory and often suppurating lesion on the skin or an internal mucous surface resulting in necrosis of tissue

• the process of ulcer formation; the process of becoming ulcerated

• very high frequency sound; used in ultrasonography

• using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs