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thrombosis

n. the presence or formation of a blood clot (thrombus) in a blood vessel, including vessels in the heart (coronary thrombosis). Thrombosis is likely to develop where blood flow is impeded by disease, injury, or a foreign substance. Formation of a blood clot in a vein is called venous thrombosis (see deep vein thrombosis). A thrombosis in the brain (cerebral thrombosis) can cause a thrombotic stroke or cerebrovascular accident. See also auditory thrombosis. —thrombotic adj.

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Psychology term of the day

January 26th 2025

blind

blind

adj.

1. denoting a lack of sight. See blindness.

2. denoting a lack of awareness. In research, a blind procedure may be employed deliberately to enhance experimental control: A single blind is a procedure in which participants are unaware of the experimental conditions under which they are operating; a double blind is a procedure in which both the participants and the experimenters interacting with them are unaware of the particular experimental conditions; and a triple blind is a procedure in which the participants, experimenters, and data analysts are all unaware of the particular experimental conditions.