Found 1 items, similar to half-minute glass.
English → English (gcide)
Definition: half-minute glass
Hourglass
\Hour"glass`\, n.
An instrument for measuring time, especially the interval of
an hour. It consists of a glass vessel having two
compartments, from the uppermost of which a quantity of sand,
water, or mercury occupies an hour in running through a small
aperture unto the lower.
[1913 Webster]
Note: A similar instrument measuring any other interval of
time takes its name from the interval measured; as, a
half-hour glass, a
half-minute glass. A
three-minute glass is sometimes called an egg-glass,
from being used to time the boiling of eggs.
[1913 Webster]