horsehair lichen
— Noun
– English
~ any of several lichens of the genus Alectoria having a thallus consisting of filaments resembling hair
half-life
— Noun
– English
~ the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
half life
— Noun
– English
~ the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
heavy lifting
— Noun
– English
~ difficult work; "the boss hoped the plan would succeed but he wasn't willing to do the heavy lifting"
half-light
— Noun
– English
~ a greyish light (as at dawn or dusk or in dim interiors)
heat lightning
— Noun
– English
~ bright flashes of light near the horizon without thunder (especially on hot evenings); usually attributed to distant lightning that is reflected by clouds
Himalayan lilac
— Noun
– English
~ robust upright shrub of mountains of northern India having oblong-elliptic leaves and pale lilac or white malodorous flowers
Hungarian lilac
— Noun
– English
~ central European upright shrub having elliptic leaves and upright clusters of lilac or deep violet flowers