Definitions for: Proto-

Webster (1913) Definition: Pro"to- [Gr. prw^tos first, a superl. fr. pro` before.
See Pro-.]
1. A combining form prefix signifying first, primary,
primordial; as, protomartyr, the first martyr;
protomorphic, primitive in form; protoplast, a primordial
organism; prototype, protozoan.

2. (Chem.)
(a) Denoting the first or lowest of a series, or the one
having the smallest amount of the element to the name
of which it is prefixed; as protoxide, protochloride,
etc.
(b) Sometimes used as equivalent to mono-, as indicating
that the compound has but one atom of the element to
the name of which it is prefixed. Also used
adjectively.

Try our:
Scrabble Word Finder

Scrabble Cheat

Words With Friends Cheat

Hanging With Friends Cheat

Scramble With Friends Cheat

Ruzzle Cheat

Related Resources:
animals beginning with p
animals begin with y
animals begin with i