plural of mailbox

A kind of gate or portcullis, having iron bars, like a harrow, studded with iron spikes, hung above gateways so that it may be quickly lowered to impede the advance of an enemy.

(biology, geography, uncountable) The study of the geographical distribution of living things. / (biology, geography, countable) The geographical distribution of a particular living thing.

simple past tense and past participle of miniaturise