1. (n.) A sitting on eggs for the purpose of hatching young; a brooding on, or keeping warm, (eggs) to develop the life within, by any process.

2. (n.) The development of a disease from its causes, or its period of incubation. (See below.)

3. (n.) A sleeping in a consecrated place for the purpose of dreaming oracular dreams.

assimilating bigness blanket blanketing border brooding burial burying calcimining circumference cloak cloaking clouding coat coating collop comprising concealedness concealing concealment containing cortex counting cover coverage covering up covert covertness coverture cowl cowling crust curtain curtaining custodial cut darkening deal deception defensive disk drape drapery embracing enameling encircling enclosing encompassing envelope enveloping envisaging epidermis exterior external facade face facet feuille film flap foil fold fostering fresco fringe front gestation gilding glazing glossing gravidity gravidness greatness guardian guarding guise hanging heaviness hiddenness hiding hood housing immunizing including inclusive incorporating incubation integument interment invisibility japanning lamella lamina laminated glass laminated wood lap leaf lineaments mantle mask masking membrane mystification nonrevealing numbering obscuration obscurement obscuring occultation outer face outer layer outer side outer skin outline outside painting pall pane panel parental patina peel pellicle periphery plait plank plate plating ply plywood pregnancy preventive priming prophylactic protecting protective putting away rasher rind safeguarding safety glass screen screening scum secrecy secretion shading sheathing sheet shell shellacking shelter sheltering shield shielding shroud shrouding sitting skin slab slat slice staining stippling subterfuge superficies superstratum surface table tablet the family way top tutelary uncommunicativeness undercoating undisclosing unrevealing varnishing veil veiling veneer vestment vigilant wafer watchful whitewashing wrapping