Proto- 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. [1913 Webster]

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. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • proto — proto …   Dictionnaire des rimes

  • Proto — may refer to:Linguistics* Proto language, language that is the common ancestor of a set of related languagesFiction* Proto, one of the Nereids in Greek mythology * Proto (Ghost in the Shell), fictional character in Masamune Shirow s Ghost in the… …   Wikipedia

  • Proto — unter Microsoft Windows Vista Basisdaten Maintainer Mieszko miechu Lassota Aktuelle Version …   Deutsch Wikipedia

  • proto — Element de compunere care înseamnă primul , întâiul şi care serveşte la formarea unor substantive. – Din ngr. protos, fr. proto . Trimis de ana zecheru, 19.04.2004. Sursa: DEX 98  PROTO Element prim de compunere savantă cu semnificaţia: 1.… …   Dicționar Român

  • proto- — [prōt′ō, prōt′ə] [Gr prōto < prōtos, first < IE * pṛto < base * pro , early, ahead > L pro , Gr pro ] combining form 1. first in time, original, primitive [protoplast] 2. first in importance, principal, chief [protonotary] 3. [P ]… …   English World dictionary

  • proto- — pref. Elemento que significa primeiro.   • Nota: É seguido de hífen quando o segundo elemento começa por vogal, h, r ou s (ex.: proto árico, proto história, proto revolucionário, proto sulfureto) …   Dicionário da Língua Portuguesa

  • Proto® — /prōˈtō/ (S Afr) noun The name of a type of breathing apparatus used in mine rescues Proto team or proto team noun A team of people trained to deal with underground rescues, etc …   Useful english dictionary

  • proto- — Prefijo que significa primero. Medical Dictionary. 2011 …   Diccionario médico

  • proto- — [dal gr. prō̂tos primo , in composizione prōto ]. 1. Primo elemento di molte parole composte, che significa primo in ordine di tempo o di spazio (protocanonico, protomartire ), o in ordine d importanza (protomedico, protonotaro ). 2. Sign. partic …   Enciclopedia Italiana

  • proto- — [prəutəu, tə US proutou, tə] prefix [: Late Latin; Origin: Greek, from protos first ] technical existing or coming before other things of the same type ▪ a proto fascist group ▪ a prototype …   Dictionary of contemporary English

  • proto- — element meaning first, from Gk. proto , comb. form of protos first, superlative of pro before (see PRO (Cf. pro )) …   Etymology dictionary

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”