adjective

1. gathered into, or considered as, a whole; total the aggregate number of unemployed
2. Bot.
   1. massed into a dense head or cluster, as a flower
   2. formed of closely clustered carpels, as the raspberry
3. Geol. made up of a mixture of mineral fragments, crystals, or similar materials an aggregate rock

Etymology: L aggregatus, pp. of aggregare, to lead to a flock, add to < ad-, to + gregare, to herd < grex (gen. gregis), a herd

noun

1. a group or mass of distinct things gathered into, or considered as, a total or whole
2. the sand or pebbles added to cement in making concrete or mortar
3. an aggregate rock

transitive verb aggregated -·gat′ed, aggregating -·gat′·ing

1. to gather into a whole or mass
2. to amount to; total