To put or keep out of sight
a few secrete colouring matters other than chlorophyll.
The glands secrete hippuric acid which passes from the pericardium into the renal organs.
by P. Viollet, Paris pendant la Revolution d'apres les rapports de la police secrete, 1789-1800 (4 vols., 1880-1894); A.
interior of which the pigment-cells secrete a gelatinous substance forming a rudimentary vitreous body.