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very small free-living arachnid that is parasitic on animals or plants; related to ticks acarid
plant that derives moisture and nutrients from the air and rain; usually grows on another plant but not parasitic on it aerophyte , air plant , epiphyte , epiphytic plant
naked freshwater or marine or parasitic protozoa that form temporary pseudopods for feeding and locomotion ameba , amoeba
small herb with scalelike leaves on reddish-brown stems and berrylike fruits; parasitic on spruce and larch trees American mistletoe , Arceuthobium pusillum
medication capable of causing the evacuation of parasitic intestinal worms anthelminthic , anthelmintic , helminthic , vermifuge
genus of chiefly American plants parasitic on conifers Arceuthobium , genus Arceuthobium
large roundworms parasitic in intestines of vertebrates Ascaridae , family Ascaridae
small genus of North American herbs often root-parasitic and bearing golden-yellow flowers; sometimes placed in genus Gerardia Aureolaria , genus Aureolaria
virus that is parasitic in bacteria bacteriophage , phage
hairy nectar-eating fly that resembles a bee; larvae are parasitic on larvae of bees and related insects bee fly
wingless insect with mouth parts adapted for biting; mostly parasitic on birds bird louse , biting louse , louse
parasitic on mice of genus Peromyscus and bites humans; principal vector for Lyme disease in eastern United States (especially New England); northern form was for a time known as Ixodes dammini (deer tick) black-legged tick , Ixodes scapularis
flatworms parasitic in the blood vessels of mammals blood fluke , schistosome
parasitic louse that infests the body of human beings body louse , cootie , Pediculus corporis
parasitic larva bot
copepods with suctorial mouthparts; parasitic on fishes Branchiura , order Branchiura
parasitic shrub of the eastern United States having opposite leaves and insignificant greenish flowers followed by oily dull green olivelike fruits buckleya , Buckleya distichophylla
shrub of southeastern United States parasitic on roots of hemlocks having sparse spikes of greenish flowers and pulpy drupes buffalo nut , Pyrularia pubera , rabbitwood
parasitic fungus that can infect the mouth or the skin or the intestines or the vagina Candida albicans , Monilia albicans
genus of western North and South American perennials often partially parasitic on roots of grasses Castilleia , Castilleja , genus Castilleia , genus Castilleja
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