1) Hairline Noun
A very thin line.
Line - a mark that is long relative to its width.
Heterology - (biology) the lack of correspondence of apparently similar body parts.
Heterologic, Heterological, Heterologous - not corresponding in structure or evolutionary origin.
Division Heterokontophyta, Heterokontophyta - algae having chlorophyll a and usually c, and flagella of unequal lengths; terminology supersedes Chrysophyta in some classifications.
Chrysophyceae, Class Chrysophyceae, Class Heterokontae, Heterokontae - all the yellow-green algae having flagella of unequal length.
Alternation Of Generations, Heterogenesis, Xenogenesis - the alternation of two or more different forms in the life cycle of a plant or animal.
Cinnamon Stone, Essonite, Hessonite - a garnet ranging in color from yellow to brown; "Beautiful hessonite ring".
Hessian Fly, Mayetiola Destructor - small fly whose larvae damage wheat and other grains; "Hessian Flies attacked th crop".
Hessian, Hessian Boot, Jackboot, Wellington, Wellington Boot - (19th century) a man`s high tasseled boot.
Hermann Hesse, Hesse - Swiss writer (born in Germany) whose novels and poems express his interests in eastern spiritual values (1877-1962).