Definition of "loopful" [loopful]

• In bacteriology, the amount of liquid which can be held within the loop of platinum wire used for transferring cultures. (noun)

The Century Dictionary (Public Domain)

• "The estimation of the _m.l. d. _ of a toxin is carried out on lines similar to those laid down for living bacteria (_vide_ page 316) merely substituting 1 c.c. of toxin as the unit in place of the unit "loopful" of living culture."
• "One standardized platinum loopful of the twenty-four hour yeast growth is then used to inoculate the contents of the tube, the tube stoppered with cotton and incubated for from twenty-four to seventy-two hours at a temperature of 31°C."
• "Place a loopful of fresh desiccating fluid on a 3 × 1 glass slide; add a similar loopful of the marrow emulsion, and spread very gently over the surface of the slip."