Thick saliva or mucus. WebMD Symptom Checker helps you find the most common symptom combinations and medical conditions related to thick saliva or mucus. Click on the combination that matches your symptoms to find the conditions that may cause these problems.
An all-terrain vehicle (ATV), also known as a quad, quad bike, three-wheeler, four-wheeler, or quadricycle as defined by the American National Standards Institute (ANSI) is a vehicle that travels on low-pressure tires, with a seat that is straddled by the operator, along with handlebars for steering control.
Full Definition of AIRCRAFT. : a vehicle (as an airplane or balloon) for traveling through the air. See aircraft defined for English-language learners.See aircraft defined for kids. ADVERTISEMENT.lural aircraft. : a vehicle (as an airplane or helicopter) that can travel through the air and that is supported either by its own lightness or by the action of the air against its surfaces.