infanticide
    n 1: a person who murders an infant
    2: murdering an infant

Infanticide \In*fan"ti*cide\, n. [L. infanticidium child murder;
   infans, -antis, child + caedere to kill: cf. F. infanticide.
   See Infant, and Homicide.]
   The murder of an infant born alive; the murder or killing of
   a newly born or young child; child murder.
   [1913 Webster]

Infanticide \In*fan"ti*cide\, n. [L. infanticida: cf. F.
   infanticide.]
   One who commits the crime of infanticide; one who kills an
   infant.
   [1913 Webster]

INFANTICIDE, med. juris. The murder of a new born infant, Dalloz, Dict. 
Homicide, Sec. 4; Code Penal, 300. There is a difference between this 
offence and those known by the name of prolicide, (q.v.) and foeticide.
(q.v.) 
     2. To commit infanticide the child must be wholly born; it is not. 
Sufficient that it was born so far as the head and breathed, if it died 
before it was wholly born. 5 Carr. & Payn. 329; 24 Eng. C. L. Rep. 344; S. 
C. 6 Carr: & Payn. 349; S. C. 25 Eng. C. L. Rep. 433. 
     3. When this crime is to be proved from circumstances, it is proper to 
consider whether the child had attained that size and maturity by which it 
would have been enabled to maintain an independent existence; whether it was 
born alive; and, if born alive, by what means it came to its death. 1 Beck's 
Med. Jur. 331 to 428, where these several questions are learnedly 
considered. See also 1 Briand, Med Leg. prem. part. c. 8 Cooper's Med. Jur. 
h.t. Vide Ryan's Med. Jur. 137; Med. Jur. 145, 194; Dr. Cummin's Proof of 
Infanticide considered Lecieux, Considerations Medico-legales sur 
l'Infanticide; Duvergie, Medicine Legale, art. Infanticide.