n. The common English name of any diurnal lepidopterous insect; especially, one of the rhopalocerous Lepidoptera, corresponding to the old Linnean genus Papilio, called distinctively the butterflies. See Diurna, Rhopalocera, Lepidoptera, and Papilio.n. Figuratively, a person whose attention is given up to a variety of trifles of any kind; one incapable of steady application; a showily dressed, vain, and giddy person.n. A kind of flat made-up neck-tie.n. An herb otherwise called ragwort. Kersey, 1708.n. A local name for a mussel, Plagiola securis, found in the Mississippi river: so called from the shape of the valves. The shell is used in the pearl-button industry.