WordRel.com

• any projection that is thought to resemble a human arm

  synonym	armbranch
  hypernym	projection

• the graduated arc that is attached to an instrument for measuring angles

  holo part	octantsextant
  hypernym	arc

• either of the two halves of a bow from handle to tip

  holo part	bow
  hypernym	partportion

• one of the jointed appendages of an animal used for locomotion or grasping: arm, leg, wing, flipper

  holo part	appendicular skeleton
  hypernym	appendageextremitymember
  hyponym	armcruscubitusflipperforearmforelimbhind limbhindlimbleglegthigh
  mero part	extremitystump

• (astronomy) the circumferential edge of the apparent disc of the sun or the moon or a planet

  domain topic	astronomyuranology
  hypernym	borderedge

• any of the main branches arising from the trunk or a bough of a tree

  synonym	tree branch
  holo part	tree
  hypernym	branch
  hyponym	boughstick