From The Collaborative International Dictionary of English v.0.48 [gcide]:
Corpus \Cor"pus\ (-p[u^]s), n.; pl. Corpora (-p[-o]*r[.a]).
[L.]
A body, living or dead; the corporeal substance of a thing.
[1913 Webster]
Corpus callosum (k[a^]l*l[=o]"s[u^]m); pl. {Corpora
callosa} (-s?) [NL., callous body] (Anat.), the great band
of commissural fibers uniting the cerebral hemispheres.
See Brain.
Corpus Christi (kr[i^]s"t[imac]) [L., body of Christ] (R.
C. Ch.), a festival in honor of the eucharist, observed on
the Thursday after Trinity Sunday.
Corpus Christi cloth. Same as Pyx cloth, under Pyx.
Corpus delicti (d[-e]*l[i^]k"t[imac]) [L., the body of the
crime] (Law), the substantial and fundamental fact of the
comission of a crime; the proofs essential to establish a
crime.
Corpus luteum (l[=u]"t[-e]*[u^]m); pl. Corpora lutea
(-[.a]). [NL., luteous body] (Anat.), the reddish yellow
mass which fills a ruptured Graafian follicle in the
mammalian ovary.
Corpus striatum (str[-i]*[=a]"t[u^]m); pl. {Corpora
striata} (-t[.a]). [NL., striate body] (Anat.), a ridge in
the wall of each lateral ventricle of the brain.
[1913 Webster]
From WordNet (r) 3.0 (2006) [wn]:
corpus
n 1: capital as contrasted with the income derived from it [syn:
principal, corpus, principal sum]
2: a collection of writings; "he edited the Hemingway corpus"
3: the main part of an organ or other bodily structure