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Marks used in medicine and healthcare: emblems of the profession and of humanitarian protection, prescription and pharmacy notation, and the symbols on medical device packaging.
Here when the symbol belongs to medical practice. The accessibility marks that appear in hospitals are filed under accessibility, because their subject is a person's access rather than their treatment.
Officially standardised for the device and packaging marks, historically documented for the emblems — the Rod of Asclepius and the caduceus are here partly to record how often they are swapped.
All 115symbols in this domain, A–Z.
Bold or otherwise emphasised words in an ingredients list, marking allergens.
A black octagon: high in sugars.
A black octagon: high in calories.
A black octagon: high in saturated fat.
A black octagon: high in sodium.
A fixed frame for the body.
Brazil's health product registration.
A crossed loop for a weight.
A weight below the dram.
Circles and crosses plotting hearing loss by ear and frequency.
Adhesive tape whose pale stripes turn dark after processing.
The two letters Bq, the SI unit symbol for the becquerel.
A trefoil of overlapping circles, designed to be instantly recognisable as a warning for biological hazards.
A number from one to four rating containment.
A letter and a sign naming ABO type and rhesus status.
A serpent coiled around a stemmed bowl, marking pharmacy.
A lens on a black bar.
A winged staff with two serpents wound around it, originally the attribute of Hermes (Mercury), the messenger god.
Day or date labels printed on a blister pack, one per dose.
Letters p and q naming the two arms.
Numbers locating a band on an arm.
A del with bracketed position.
An inv with bracketed breakpoints.
A t with bracketed chromosomes and breakpoints.
An open book with a lowercase i, in blue.
A rectangle warning of caffeine.
A rectangle warning of sweeteners.
A letters-and-numbers marking showing a medicine's controlled-drug schedule.
A figure limiting fissile packages carried together.
An ear of wheat crossed through, marking a certified gluten-free product.
A purple label with a cell in division, marking hazardous drugs.
Yellow for serious but can wait.
Three incompatible systems for naming the same tooth.
The vertical and horizontal lines that carry the relationships in a tree.
A stroke through a square or circle meaning the person has died.
Two strands winding around each other, joined by rungs.
A crossed-out STERILE box with a diagonal bar.
Two parallel lines joining a couple who are blood relatives.
Twelve views, named by convention.
A flat line broken by a sharp spike, standing for a heartbeat.
Black or blue, for those beyond help.
An hourglass or EXP mark giving the date after which a product should not be used.
Two digits: quadrant then tooth.
A shaded square or circle: this person has the condition being traced.
A black human silhouette with a starburst on the chest, in a red-bordered diamond — the GHS symbol for serious, longer-term health hazards.
A black skull and crossbones in a red-bordered diamond, the GHS symbol for acute toxicity.
Red for treat first.
Colours distinguishing reliever from preventer inhalers.
A heart with a cross inside it.
A building outline enclosing a walking stick.
A chromosome complement in one line.
A child-and-hand or crossed-child mark warning against accessible storage.
A number rating how dangerous a laser is to the eye.
The letters LOT in capitals.
A simplified factory building with a roofline.
The tallest peak set to one hundred.
A rod-of-Asclepius badge worn to signal a condition.
A standard set of pictograms on device packaging.
The Rod of Asclepius and the caduceus on memorials, and which of them actually means medicine.
Shoulder colours identifying what is in a cylinder.
A coloured band on a cylinder's shoulder above a white or coloured body.
A thermometer or snowflake marking a medicine's required storage conditions.
The smallest liquid measure.
Green for walking wounded.
A pharmacist's mortar and pestle carved on a monument.
A bowl with a grinding club resting in it, marking pharmacy and compounding.
Two karyotypes separated by an oblique.
Three symbols saying whether an item may enter the scanner room.
A letter and subscript naming a symmetry species.
A crossed-out cup or spoon, instructing that a patient must not eat or drink.
Letters naming a peak's splitting pattern.
A figure with a marked abdomen and a basin.
A bracket showing the quadrant.
Brackets around an individual's symbol.
The squares, circles and connecting lines of a formal family diagram.
A symbol carrying a letter for an ongoing pregnancy.
A square for a male individual, a circle for a female, a diamond where unknown.
A symbol with an abbreviation beneath.
Lines converging to a single point.
A green cross marking a pharmacy, in much of Europe.
Letters and numbers pressed into a tablet, identifying the product.
A pink awareness ribbon, associated with breast cancer.
A bottle you can read in the dark.
A capital letter R with a stroke across its leg, heading a prescription.
An arrow marking the individual the chart was drawn for.
A lead L or R placed in the beam before exposure.
The R with a stroke.
A red crescent on a white ground, protected under the Geneva Conventions.
A red cross on a white ground, protected under the Geneva Conventions.
A red square standing on one corner, on a white ground.
A red lion before a rising sun, a recognised but dormant Geneva emblem.
A red awareness ribbon, the symbol of HIV and AIDS awareness.
A recorded clinical decision, not a symbol worn by a patient.
A staff with a single serpent coiled around it, associated in Greek mythology with Asclepius, the god of medicine.
A symbol or coloured connector marking how a medicine is to be given.
A rigid yellow container with a fill line and a lid lock.
A coloured jar in the window.
The two letters Sv, the SI unit symbol for the sievert.
Latin abbreviations giving the dosing instructions on a prescription.
A figure 2 struck through by a diagonal bar in a circle.
A blue six-barred star with a serpent-and-staff at its centre, marking emergency medical services.
The letters STERILE with EO beside them in a rounded box.
The letters STERILE with R beside them in a rounded box.
A looped tube ending in earpieces and a round chest piece.
Scale lines whose interval depends on the syringe size.
A graduated barrel with a plunger and a fine needle.
A capital T, the SI unit symbol for the tesla.
Letters for the faces of a tooth.
A colour-coded panel rating fat, saturates, sugar and salt per portion.
A boxed figure on a transport label.
Four colours sorting casualties by urgency at an incident.
One to thirty-two, straight through.
A number from 1 upward, with colour bands and a threshold at 3.
A Greek letter numbering a normal mode.
A fraction or a decimal describing how well someone sees.