[f. LOOP sb.1 + -FUL.] So much as is contained in a loop of (platinum) wire.
1896. Pop. Sci. Monthly, April, 857. A pure culture … was prepared and a sterilized loopful deposited.
1901. Brit. Med. Jrnl., No. 2089/8. A loopful of this [fluid] is … mixed with 1/2 to 1 c. cm. of distilled water.
