prot-
1.
variant of
proto-
before a vowel:
protamine.
British Dictionary definitions for
prot-
prot-
combining form
1.
a variant of
proto-
proto-
combining form
1.
indicating the first in time, order, or rank:
protomartyr
2.
primitive, ancestral, or original:
prototype
3.
indicating the reconstructed earliest stage of a language:
Proto-Germanic
4.
indicating the first in a series of chemical compounds:
protoxide
5.
indicating the parent of a chemical compound or an element:
protactinium
Word Origin
from Greek
prōtos
first, from
pro
before; see
pro-
²
prot-
in Medicine
prot-
pref.
Variant of
proto-
.