a chemical used for bleaching; (to cause something) to become white

whiten

to shrink back because of cold, misery, fear, shame

hide, hover in fear

to move (the body) back or down in fear

flinch, recoil from danger

(to cause something) to lose colour, freshness or strength

lose color

to move back (because of fear, pain)

shy away, wince

(especially of children) to cry irritably

make or become extremely pale

a sail in front of the mast on a sailing boat; a long arm of a crane

draw back

a colourless liquid (formula H2O2), used ass an antiseptic and as a bleach

whiten

a kind of small bird, similar to a partridge, valued as food; to feel or show fear

cower, shrink

to draw or jump back

shrink away

to show pain or distress by a movement, sound or by loss of control

draw back