Pulmonary hypertension is a type of high blood pressure that affects the arteries in your lungs and the right side of your heart. In one form of pulmonary hypertension, tiny arteries in your lungs, called pulmonary arterioles, and capillaries become narrowed, blocked or destroyed. This makes it harder for blood to flow through your lungs, and raises pressure within your lungs' arteries.
â¢ LISP (noun) The noun LISP has 2 senses: 1. a speech defect that involves pronouncing 's' like voiceless 'th' and 'z' like voiced 'th'. 2. a flexible procedure-oriented programing language that manipulates symbols in the form of lists. Familiarity information: LISP used as a noun is rare. â¢ LISP (verb) The verb LISP has 1 sense:
cusp. Cusps of the atrioventricular (tricuspid) valve. semilunar cusp any of the semilunar segments of the aortic valve (having posterior, right, and left cusps) or the pulmonary valve (having anterior, right, and left cusps).(kÅ­sp).usp. a pointed or rounded projection, such as on the crown of a tooth, or a segment of a cardiac valve. See also valvula. Carabelli cusp an accessory fifth cusp on the lingual surface of many maxillary first molars; it may be unilateral or bilateral and varies in size from person to person.