almost musical approving guttural pulsating rapid-fire soothing plaintive encouraging mellow purposeful soporific Accounts of unicorns' soft nickers in literature include: A soft nicker and a prickly muzzle pushed in her face. . . . As her eyes adjusted to the darkness, Jade saw many white shapes lying around and she realized she was in the midst of the unicorn herd. -- Shawn Snead, Dragon's Egg (2002) The unicorn hesitated. Its long, tufted tail swished indecisively. Tilting its head to one side in a quizzical manner, it nickered through its long nose. -- Ayinsan, "Pleasant Days: Twin" (2003) The vibratory waveform of a unicorn's soft nicker.