Sandglass vs. Hourglass

Sandglassnoun

An instrument for measuring the passage of time by the passage of sand through a narrow opening.

Sandglassnoun

An instrument for measuring time by the running of sand. See Hourglass.

Sandglassnoun

timepiece in which the passage of time is indicated by the flow of sand from one transparent container to another through a narrow passage

Hourglassnoun

A clock made of two glass vessels connected by a narrow passage through which sand flows.

Hourglassnoun

(GUI) A cursor, often shaped like an hourglass, indicating that the computer is busy.

Hourglassnoun

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.

Hourglassnoun

a sandglass that runs for sixty minutes

Hourglass

An hourglass (or sandglass, sand timer, sand clock or egg timer) is a device used to measure the passage of time. It comprises two glass bulbs connected vertically by a narrow neck that allows a regulated flow of a substance (historically sand) from the upper bulb to the lower one.