n.
a metallic tapping sound
"he counted the ticks of the clock"
同义词：ticking
any of two families of small parasitic arachnids with barbed proboscis; feed on blood of warm-blooded animals
a mark indicating that something has been noted or completed etc.
同义词：check markcheck
a light mattress
Biology of ticks
Biology of ticks
Biology of Ticks
Biology of ticks
Biology of ticks.
Evolution of ticks.
Ticks of Domestic Animals in Africa: a guide to identification of species
Ticks and tickborne bacterial diseases in humans: an emerging infectious threat
Distribution and Hosts of Certain North American Ticks
Structural and functional characterization of a novel carboxypeptidase inhibitor from ticks
