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XI
Pronunciation (US): | (GB): |
I. (noun)
Sense 1
Meaning:
The 14th letter of the Greek alphabet
Classified under:
Nouns denoting communicative processes and contents
Hypernyms ("xi" is a kind of...):
alphabetic character; letter; letter of the alphabet (the conventional characters of the alphabet used to represent speech)
Holonyms ("xi" is a member of...):
Greek alphabet (the alphabet used by ancient Greeks)
Sense 2
Meaning:
The cardinal number that is the sum of ten and one
Synonyms:
Classified under:
Nouns denoting quantities and units of measure
Hypernyms ("XI" is a kind of...):
large integer (an integer equal to or greater than ten)
II. (adjective)
Sense 1
Meaning:
Synonyms:
11; eleven; xi
Classified under:
Similar:
cardinal (being or denoting a numerical quantity but not order)
Context examples:
Xi may be monitoring the flies’ metabolic state, including levels of nutrients, and then signaling to octopamine neurons whether they should turn on or off, resulting in changes in behavior.
(Gut bacteria may control movement, National Institutes of Health)
Inherited coagulation factor-deficient hemophilias include hemophilia A or classic hemophilia (factor VIII deficiency) hemophilia B or Christmas disease (factor IX deficiency), and hemophilia C (factor XI deficiency).
(Hemophilia, NCI Thesaurus)
The complex binds to and irreversibly inactivates thrombin and other activated clotting factors, such as factors IX, X, XI, and XII, thereby preventing the polymerization of fibrinogen to fibrin and the subsequent formation of clots.
(Heparin, NCI Thesaurus)
This agent reversibly binds to the thrombin active site thereby preventing the thrombin-dependent reactions, which include conversion of fibrinogen to fibrin; the activation of factors V, VIII and XI; the activation of protein C; and platelet aggregation.
(Argatroban, NCI Thesaurus)
This agent reversibly binds to the thrombin active site, thereby preventing the thrombin-dependent reactions, which include the conversion of fibrinogen to fibrin; the activation of factors V, VIII and XI; the activation of protein C; and platelet aggregation.
(Argatroban Anhydrous, NCI Thesaurus)
A kernel function described by the equation: ((2PI)^(-0.5))*exp(-u^(2)/2) with u=(x-xi)/h, where h is the window width and xi are the values of the independent variable in the data, and x is the value of the independent variable for which one seeks an estimate.
(Gaussian Kernel, NCI Thesaurus)
Test of the intrinsic (factors VIII, IX, XI, and XII) and common (fibrinogen, prothrombin, factors V and X) pathways of coagulation in which a mixture of plasma and phospholipid platelet substitute (e.g., crude cephalins, soybean phosphatides) is recalcified and the time required for the appearance of fibrin strands measured.
(Partial Thromboplastin Time, NLM, Medical Subject Headings)