One who or that which is at least 100 years old.

Aged 100 years or more; extremely old. / Of or relating to centenarians or a centenary celebration.

(automotive) A position in the four-stroke combustion process wherein the piston is at the topmost point in its stroke. This can either be during the compression phase or the combustion phase.

To create a small hole or indentation in a workpiece as a guide in preparation for drilling.

(countable) A tool used to create a small indentation in preparation for drilling a hole. / (countable) The small indentation created by such a tool.

middlemost; located at the center / (especially Canada, US) emotionally stable, calm, serene; having a balanced mind

simple past tense and past participle of center

(Greek mythology) One of a race of monsters having a head, torso, and arms of a man, and the body and legs of a horse. Often depicted as rowdy drunkards, with Chiron being a notable exception.

(accounting, management) A division or project of an organization to which costs can be specifically allocated.

(US) A place where music is performed or rehearsed.