Here are some Idaho definitions. They arent that different around the country but some do vary.
TITLE 18
CRIMES AND PUNISHMENTS
CHAPTER 9
ASSAULT AND BATTERY
18-903. BATTERY DEFINED. A battery is any:
(a) Willful and unlawful use of force or violence upon the person of
another; or
(b) Actual, intentional and unlawful touching or striking of another
person against the will of the other; or
(c) Unlawfully and intentionally causing bodily harm to an individual.
TITLE 18
CRIMES AND PUNISHMENTS
CHAPTER 9
ASSAULT AND BATTERY
18-901. ASSAULT DEFINED. An assault is:
(a) An unlawful attempt, coupled with apparent ability, to commit a
violent injury on the person of another; or
(b) An intentional, unlawful threat by word or act to do violence to the
person of another, coupled with an apparent ability to do so, and doing some
act which creates a well-founded fear in such other person that such violence
is imminent.
TITLE 18
CRIMES AND PUNISHMENTS
CHAPTER 9
ASSAULT AND BATTERY
18-905. AGGRAVATED ASSAULT DEFINED. An aggravated assault is an assault:
(a) With a deadly weapon or instrument without intent to kill; or
(b) By any means or force likely to produce great bodily harm.[; or]
(c) With any vitriol, corrosive acid, or a caustic chemical of any kind.
(d) "Deadly weapon or instrument" as used in this chapter is defined to
include any firearm, though unloaded or so defective that it can not be fired.
TITLE 18
CRIMES AND PUNISHMENTS
CHAPTER 9
ASSAULT AND BATTERY
18-907. AGGRAVATED BATTERY DEFINED. (1) A person commits aggravated
battery who, in committing battery:
(a) Causes great bodily harm, permanent disability or permanent
disfigurement; or
(b) Uses a deadly weapon or instrument; or
(c) Uses any vitriol, corrosive acid, or a caustic chemical of any
nature; or
(d) Uses any poison or other noxious or destructive substance or liquid;
or
(e) Upon the person of a pregnant female, causes great bodily harm,
permanent disability or permanent disfigurement to an embryo or fetus.
(2) For purposes of this section the terms "embryo" or "fetus" shall mean
any human in utero.
(3) There shall be no prosecution under subsection (1)(e) of this
section:
(a) Of any person for conduct relating to an abortion for which the
consent of the pregnant female, or person authorized by law to act on her
behalf, has been obtained or for which such consent is implied by law.
(b) Of any person for any medical treatment of the pregnant female or her
embryo or fetus; or
(c) Of any female with respect to her embryo or fetus.
(4) Nothing in this chapter is intended to amend or nullify the
provisions of chapter 6, title 18, Idaho Code.
Gary D.