micrograms
Millionths of grams
Micrograms are units of mass equal to one millionth of a gram, used for measuring extremely small quantities.
The abbreviation is mcg or μg.
Micrograms appear most often in pharmacology and nutrition, where active substances are potent in tiny amounts: The tablet contains 50 micrograms of folic acid.
Drug dosing errors sometimes occur when micrograms are confused with milligrams.
Metric mass units
- doseQuantity of medicine
- medicationTherapeutic substance for illness
- prescriptionMedical dispensing authorization
- unitsStandard measures of quantity
tablet · capsule · injection · vaccine · insulin · hormone · vitamin · supplement
Measure of relative size
- weightMeasure of heaviness
- metricStandard of measurement
- massQuantity of matter
- quantifyExpress numerically
calibrate · balance · tare · weighing · precision · accuracy · analytical · microbalance
Facility for scientific investigation
- spectrometryMeasuring radiation to identify substances
- assayCompositional evaluation procedure
- chromatographyTechnique separating mixtures by differential migration
- biochemistryScience of living chemistry
toxicology · pharmacology · molecular · analytical · quantitative · research · sample · pipette
Extremely small in size
- infinitesimalQuantity approaching zero
- traceMinute remnant or pursue
- particleMinute piece of matter
- speckMinute visible particle
microscopic · imperceptible · minute · tiny · fractional · ultrafine · invisible · negligible
grams
Metric mass units
- doseQuantity of medicine
- medicationTherapeutic substance for illness
- prescriptionMedical dispensing authorization
units · tablet · capsule · injection · vaccine · insulin · hormone · vitamin · supplement · antibiotic
scale
Measure of relative size
quantify · calibrate · balance · tare · weighing · precision · accuracy · analytical · microbalance · sensitivity
laboratory
Facility for scientific investigation
- spectrometryMeasuring radiation to identify substances
- assayCompositional evaluation procedure
- chromatographyTechnique separating mixtures by differential migration
biochemistry · toxicology · pharmacology · molecular · analytical · quantitative · research · sample · pipette · reagent
minuscule
Extremely small in size
- infinitesimalQuantity approaching zero
- traceMinute remnant or pursue
- particleMinute piece of matter
speck · microscopic · imperceptible · minute · tiny · fractional · ultrafine · invisible · negligible · threshold