Alternative form of down for the count

plural of count-up

Enumeration / Session for counting something

the mathematical concept of matching the sequence of counting words with objects where each object is allocated a number in turn, with the final number word corresponding to the total.

abacus

plural of counting-house

Alternative form of countinghouse

(microbiology) A measure of bacterial contamination of a sample.

To make something have as useful and positive an effect as possible.

(genetics) A count of the sequence of bases read in a genomic analysis