"Spirula" Natural Recordings by Native Speakers
Spirula is a genus of tusk shells, marine snails whose shell is internal, meaning that it is located inside the animal's head.
Spirometry is a medical procedure used to assess the lung function of a person. It measures the amount of air a person can inhale and exhale, and the speed at which they breathe. Spirometry is used to diagnose and monitor respiratory conditions such as asthma, COPD (chronic obstructive pulmonary disease), and pulmonary fibrosis. During a spirometry test, a person blows air into a tube connected to a machine that records the volume and flow rate of air. The results are then used to calculate various lung function parameters, such as forced expiratory volume (FEV1) and forced vital capacity (FVC).
Spironuclease or spirurida is a class of parasitic nematodes commonly called heartworms. The name comes from their basic living structure resembling tiny spiral spirals.
Spissitude refers to the quality or state of being sharp or pointed in opinion or manner, often implying severity, severity, or austerity.