Proto
1.
a combining form meaning “first,” “foremost,” “earliest form of,” used in the formation of compound words (protomartyr; protolithic; protoplasm), specialized in chemical terminology to denote the first of a series of compounds, or the one containing the minimum amount of an element.
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
proto- or prot-
pref.
First in time: prototype.
First formed; primitive; original: protoplast.
Having the least amount of a specified element or radical: protoporphyrin.
Read Also:
- Protoactinium
[proh-toh-ak-tin-ee-uh m] /ˌproʊ toʊ ækˈtɪn i əm/ noun, Chemistry. 1. protactinium. protoactinium /ˌprəʊtəʊækˈtɪnɪəm/ noun 1. the former name of protactinium
- Proto-Algonquian
[proh-toh-al-gong-kee-uh n, -kwee-uh n] /ˌproʊ toʊ ælˈgɒŋ ki ən, -kwi ən/ noun 1. the unattested parent language from which the Algonquian languages are descended.
- Protoavis
noun 1. a fossil bird of the genus Protoavis, from the Triassic Period, having a birdlike, partly toothless jaw structure, a tail and hind legs resembling those of the dinosaur, and the hollow bones and keellike breast that are characteristic of modern birds: the oldest known avian type, preceding the archaeopteryx by an estimated 75 […]
- Protocal
noun, verb 1. a frequent misspelling of protocol. spelling It’s spelled “protocol”.
- Protocals
noun, verb 1. a frequent misspelling of protocol.