לוֹבֶן, (לָבָן) white matter, white color. Gitt. 57ᵃ, a. e. ל׳ ביצה the white of an egg. Neg. IV, 1 מראה ל׳ the white color (of leprosy). Nidd. 31ᵃ, a. e. הל׳ the white substance (semen virile). Ib. הל׳ שבעין the white of the eye; a. fr.—Pl. לוֹבְנִים. Koh. R. to V, 10 לובן שממנו הל׳ the white (semen) out of which are formed the white substances of the embryonic body.—
לוֹבֶן, (לָבַן I) the mass of clay for bricks. Pirké d’R. El. ch. XLVIII בין ל׳ הלבנים in the clay stamped for bricks.