Noun:

ਘੰਟਾ ਗਲਾਸ, ਘੜੀ ਦਾ ਗਲਾਸ,

watch glass's Usage Examples:

historically used by Victorian chemists, owing to their cheap availability, the chemist"s modern "watch glass" is thicker, flatter and of a heat-resistant glass.

15 drops of plasma with five drops of embryo extract in a watch glass.

A watch glass is a circular concave piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, for heating.

as an evaporation surface, a watch glass allows closer observation of precipitates or crystallization, and can be placed on a surface of contrasting color.

cover slip to measure melting point, or a graduated cylinder, or to a watch glass from a flask or beaker through scraping.

Place a watch glass on a pad of cotton wool in a petri dish; cotton wool is kept.

paper for weighing, to a cover slip to measure melting point, or a graduated cylinder, or to a watch glass from a flask or beaker through scraping.

A Syracuse dish or Syracuse watch glass is a shallow, circular, flat-bottomed dish of thick glass.

desired amount of solid, a watch glass is placed on the scale, followed by taring or zeroing the scale so that only the weight of the sample substance is.

commonly termed "watch glasses", since they resemble the front window of a pocket watch.

However, when in use, beakers may be covered by a watch glass to prevent contamination or loss of the contents, but allowing venting.

example, a company that does not manufacture crystals (the watch glass) or hairsprings may still be regarded as a manufacture.

Synonyms:

take in, catch, view, witness, rubberneck, look, see, observe,

Antonyms:

unskillfulness, agitate, worry, dissuade, lose,