סִיט, (סוּט; cmp. הֶסֵּיט), only with art. הַסִּיט (cmp. הַנֵּץ) [swinging the forefinger, cmp. the expression נטה יד,] hassiṭ, the distance between the tip of the thumb and that thumb and that of the index finger when held apart, or between the root of the thumb and the tip of the index finger, when the former is leaning against the latter (כפוף). [Commentators differ in the definition of our w.—Maim. to Kel. XIII, 4 distinguishes between מלא הס׳ a. מלא רחב הס׳.] Sabb. XIII, 4 כמלא רחב הס׳ כפול the double size of a hassiṭ; ib. 106ᵃ רב יוסף מחוי כפול R. J. showed the double measure (Ar. כפוף, v. supra); רב חייא … מחוי פשוט R. H. b. A. showed the single measure (Ar.: with the thumb stretched); Tosef. ib. IX (X), 3 מלא הס׳ כפול. Orl. III, 2; a. fr.—Num. R. s. 18; Tanḥ. Ḥuck. 1 מלא הס׳ יש בו וכ׳ within a distance of a hassiṭ (in the human head) there are several wells (seats of mucous secretions).