pacemaker

noun
  1. a person or animal who sets the pace at the beginning of a race, sometimes in order to help a runner
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pacer

noun
  1. a pacemaker.
  2. a horse bred or trained to pace, used in some types of racing.

pacesetter

noun
  1. another term for pacemaker (sense 1 of the noun).
    these centres are the pacesetters for the nation
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pachycephalosaur

noun

a bipedal herbivorous dinosaur of the late Cretaceous period, with a thick domed skull.

from Greek... Read more »

pacier

adjective, comparative adjective
  1. moving or progressing quickly.
    a pacy thriller

pacifier

noun
  1. Someone or something that pacifies.
  2. A rubber or plastic device imitating a nipple that goes into
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Packer

noun
  1. a person or machine that packs something, especially someone who prepares and packs food for transportation
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packer

noun
  1. A person whose business is to pack things; especially, one who packs food for preservation
    He works
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