Sinus arrhythmia
sinus arrhythmia n.
Irregularity of the heartbeat due to a variation in the sinus rhythm.
Read Also:
- Sinus block
sinus block n. See sinoatrial block.
- Sinus-iridum
[see-nuh s ir-i-duh m, sahy-] /ˈsi nəs ˈɪr ɪ dəm, ˈsaɪ-/ noun 1. (Bay of Rainbows) a semicircular dark plain in the second quadrant of the face of the moon.
- Sinusitis
noun, Pathology. 1. inflammation of a sinus or the sinuses. noun 1. inflammation of the membrane lining a sinus, esp a nasal sinus sinusitis si·nus·i·tis (sī’nə-sī’tĭs) n. Inflammation of the mucous membrane of a sinus, especially of the paranasal sinuses.
- Sinus-meridianii
[see-nuh s muh-rid-ee-ah-nee-ee, sahy-nuh s muh-rid-ee-ey-nee-ahy] /ˈsi nəs məˌrɪd iˈɑ niˌi, ˈsaɪ nəs məˌrɪd iˈeɪ niˌaɪ/ noun 1. an area on the equator of Mars, appearing as a dark region when viewed telescopically from the earth.
- Sinus-node
noun, Anatomy. 1. sinoatrial node. sinus node n. See sinoatrial node.