弹道导弹
弹道式导弹

[ noun ]
a missile that is guided in the first part of its flight but falls freely as it approaches target
<noun.artifact>

Missile \Mis"sile\, n. [L. missile.]
1. A weapon thrown or projected or intended to be projected,
as a lance, an arrow, or a bullet.

2. A rocket-propelled device designed to fly through the air
and deliver a warhead of explosive materials to a target.
[PJC]

Note: Numerous types of rocket-propelled missile[2] are now
used in modern warfare. Some types with names
indicating their range or function are: {antiaircraft
missile}; {ballistic missile}; {cruise missile};
{antiballistic missile missile}; {air-to-air missile};
{air-to-ground missile}; {guided missile};
{intercontinental ballistic missile} (IBM);
{intermediate range ballistic missile} (IRBM);
{surface-to-air missile}.


ballistic missile \bal*lis"tic mis`sile\, n.
A rocket-propelled missile of long range which is guided only
during the powered portion of its flight, which usually takes
only a small part of the total flight time; -- contrasted
with {guided missile}.

Note: Ballistic missiles are sometimes referred to by their
range, such as an

{intercontinental ballistic missile} ({ICBM}) or an

{intermediate range ballistic missile} ({IRBM}).
[PJC]