the eyelashes.-small, generally microscopic, vibrating appendages lining certain organs, as the air passages of the higher animals, and in the lower animals often covering also the whole or a part of the exterior. they are also found on some vegetable organisms. in the infusoria, and many larval forms, they are locomotive organs.-hairlike processes, commonly marginal and forming a fringe like the eyelash.-small, vibratory, swimming organs, somewhat resembling true cilia, as those of ctenophora.