Adjacent Words
SIGINT direct supportSIGINT direct support unit
SIGINT operational control
SIGINT operational tasking
SIGINT operational tasking authority
SIGINT resources
Sigionoth
Sigismund
Sigismund I
Sigismund II Augustus
Sigismund III Vasa
Sigla
SIGLOS
siglum
Sigmas
sigmate
Sigmodon
Sigmodon hispidus
Sigmodont
Sigmodontes
sigmoid
sigmoid colon
sigmoid flexure
sigmoid sinus
Sigmoid valves
sigmoid vein
Full-text Search for "sigma"
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sigma definitions
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WordNet (r) 3.0 (2005)
n
1: the 18th letter of the Greek alphabet
Merriam Webster's
noun Etymology: Greek Date: 15841. the 18th letter of the Greek alphabet — see alphabet table2. standard deviation
Oxford Reference Dictionary
n. the eighteenth letter of the Greek alphabet. Etymology: L f. Gk
Webster's 1913 Dictionary
Sigma Sig"ma, n.; pl. Sigmas. [L., from Gr. ???, ???.] The Greek letter [Sigma], [sigma], or [sigmat] (English S, or s). It originally had the form of the English C.
