counterarm
nounEtymology From counter- + arm.
1
A weapon that is acquired in order to counter one held by an opponent.
- The submarine is the dominating weapon today. Undersea boats spell a nameless, historical terror because no effective counterarm has been perfected.1917, Flying - Volume 5, page 136:
- Of course, we want them in a forum, not a forum of threat and counterthreat, arm and counterarm, but in the forum of discussion, and I suggest we put it there.1976, United States. Congress. House. Committee on Foreign Affairs, Military Assistance Programs - Volumes 461-484, page 391:
2 more examples
- If those years are devoted to an accelerated arms race, we might very well miss the big chance while still building ever- increasing piles of arms and counterarms.1962, Amitai Etzioni, The hard way to peace: a new strategy, page 89:
- Shock at finding London in the frenzy of pike and musket manufacture, and a determination to forge counterarms of art are recorded not only in the passing wind but in new prophecies and in Night VIII, a final late addition to The Four Zoas.2013, David V. Erdman, Blake: Prophet Against Empire, →ISBN:
2
A weighted arm, or an arm that holds a weight, which acts as a counterbalance.
- Balancing this at the other end of the teeterboard was a counterarm.1939, The New Yorker - Volume 15, Part 1, page 21:
- Grotesque arms and counterarms of the balance mechanism below the tunnel wrote their mathematical hieroglyphs on the big instrument panel.1986, Harold Mansfield, Vision: a saga of the sky, page 179:
1 more example
- In the Hotchkiss superdip the total intensity is determined from the deflection of a system consisting of a magnetic needle to which is fastened a counterarm carrying a small weight and making an adjustable angle with the needle.2012, D. S. Parasnis, Principles of Applied Geophysics, →ISBN, page 14:
3
Astronomy, Natural sciences A galactic arm on the far side of a galaxy that is colliding with another galaxy.
- On the far side of the larger galaxy a counterarm sometimes sprouts out.1978, Simon Mitton, Exploring the Galaxies, →ISBN, page 103:
- The deformations are triggered after the passage to perigalacticon: the two spiral arms generated are not symmetric and are distinguished by a bridge linking the two galaxies and a counterarm at the opposite side.2004, Francoise Combes, Patrick Boissé, Alain Mazure, Galaxies and Cosmology, →ISBN, page 187:
1 more example
- The very long straight tail of one is interpreted as a counterarm of one galaxy seen edge-on with the counterarm of the other galaxy seen closer to face-on as more obviously arched.2012, F.D. Kahn, Investigating the Universe, →ISBN: