- Q -

The following are commonly used abbreviations, acronyms, and a glossary of specialized terms starting with the letter:  

— Q —

Quaker (religious affiliations of institutions subscript: _Q ).

quality assurance (acronym: QA).

 quality assurance project plan (acronym: QAPP).

quality assurance/quality control (acronym: QA/QC) — the use  of standards and procedures to provide reasonable assurance that samples collected and data generated are reliable, reproducible and verifiable.  Source: (ASTM, 2004).

quality control (acronym: QC).

quart_dry  — unit of measure, volume — (symbol: qt) = 2 pt = 67.2 in³ = 10 l.

quart_liquid   — unit of measure, volume — (abbreviation: qt) = 2 pt = 57.75 in3 = 0.9463 l.

quartz (abbreviation: qz).

quartz latite — rock classification, igneous — volcanic rock 

quartz trachyte — rock classification, igneous — volcanic rock 

quartz, opal — SiO₂ — (silicate mineral).

quartzite (abbreviation: qzt).

quaternary – Geologic Time, Period – (approximately 1.8 MYA to present).