quartile
— Noun
– English
～ (statistics) any of three points that divide an ordered distribution into four parts each containing one quarter of the scores
quartz
— Noun
– English
～ a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities
quartz crystal
— Noun
– English
～ a thin plate or small rod of quartz cut along certain lines and ground so that it can produce an electric signal at a constant frequency; used in crystal oscillators
quartz mill
— Noun
– English
～ a stamp mill for stamping quartz
quartz lamp
— Noun
– English
～ a mercury-vapor lamp that is enclosed in a quartz container instead of a glass container
quartz battery
— Noun
– English
～ a stamp mill for stamping quartz
quartz glass
— Noun
– English
～ colorless glass made of almost pure silica
quartz
— Noun
– English
～ colorless glass made of almost pure silica
quartz oscillator
— Noun
– English
～ an oscillator that produces electrical oscillations at a frequency determined by the physical characteristics of a piezoelectric quartz crystal