(uncountable) The condition of being positive (in all senses); positivism. Optimism. / (countable) The result of being positive.

plural of positiveness

plural of positivity

(medicine) Of a blood type within the ABO and Rh blood grouping system. Blood type A positive has a phenotype of "A" and a Rhesus system classification of positive.

plural of positer

One who posits something.

(motor racing) The bottom qualifying position in a race, on the outside of the last row at the starting line.

(motor racing) The position given at the start of a race, ranked from most favorable to least favorable, awarded according to the times achieved during qualification.

(motor racing) The top qualifying position for a race, on the inside of the front row at the starting line. / (by extension) First place.

(chemistry) any isomer that differs from another isomer only in the position of a substituent, or of a double or triple bond