Words starting with proto
5 letter words starting with proto
- proto team — a team of workers trained to perform underground rescues
6 letter words starting with proto
- proto- — Proto- is used to form adjectives and nouns which indicate that something is in the early stages of its development.
- proton — a positively charged elementary particle that is a fundamental constituent of all atomic nuclei. It is the lightest and most stable baryon, having a charge equal in magnitude to that of the electron, a spin of ½, and a mass of 1.673 × 10− 27 kg. Symbol: P.
- proton microscope — a powerful type of microscope that uses a beam of protons, giving high resolution and sharp contrast
- proton number — the number of positive charges or protons in the nucleus of an atom of a given element, and therefore also the number of electrons normally surrounding the nucleus. Symbol: Z. Abbreviation: at. no.;
- proton synchrotron — a synchrotron used for accelerating protons.
7 letter words starting with proto
- protons — a positively charged elementary particle that is a fundamental constituent of all atomic nuclei. It is the lightest and most stable baryon, having a charge equal in magnitude to that of the electron, a spin of ½, and a mass of 1.673 × 10− 27 kg. Symbol: P.
- protore — a primary metalliferous material before it becomes ore
8 letter words starting with proto
- protocal — (spelling) It's spelled "protocol".
- protocol — the customs and regulations dealing with diplomatic formality, precedence, and etiquette.
- protolog — the original description of a species, genus, etc.
- protonic — a positively charged elementary particle that is a fundamental constituent of all atomic nuclei. It is the lightest and most stable baryon, having a charge equal in magnitude to that of the electron, a spin of ½, and a mass of 1.673 × 10− 27 kg. Symbol: P.
- protopod — the basal part of a crustacean's limb
9 letter words starting with proto
- protoavis — 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 million years.
- protocols — the customs and regulations dealing with diplomatic formality, precedence, and etiquette.
- protoderm — a thin outer layer of the meristem in embryos and growing points of roots and stems, which gives rise to the epidermis.
- protogine — a gneissose granite with sericite, found in the Alps
- protonate — to provide an atom, molecule, or ion with a proton
10 letter words starting with proto
- proto-form — a hypothetical linguistic form reconstructed as an element of a protolanguage.
- protocolar — the customs and regulations dealing with diplomatic formality, precedence, and etiquette.
- protocolic — relating to protocol
- protoctist — (in modern biological classifications) any unicellular or simple multicellular organism belonging to the kingdom Protoctista, which includes protozoans, algae, and slime moulds
- protogenia — the first woman born after the great flood of Zeus, daughter of Deucalion and Pyrrha.
11 letter words starting with proto
- proto-doric — of or relating to architecture, as in certain Egyptian tombs, supposedly anticipating the Grecian Doric order.
- proto-ionic — of or relating to architecture supposedly anticipating the Grecian Ionic order.
- proto-norse — the North Germanic language of Scandinavia up to about 700 ad
- protococcal — of or relating to unicellular algae of the former genus Protococcus, one of which (renamed Pleurococcus vulgaris) is a green alga commonly found on trees, walls, etc
- protocolary — the customs and regulations dealing with diplomatic formality, precedence, and etiquette.
12 letter words starting with proto
- protoduction — (jargon) A prototype that ends up in a production environment.
- protohistory — a branch of study concerned with the transition period between prehistory and the earliest recorded history.
- protomorphic — having a primitive character or structure.
- protoplasmic — Biology. (no longer in technical use) the colloidal and liquid substance of which cells are formed, excluding horny, chitinous, and other structural material; the cytoplasm and nucleus.
- protosemitic — the hypothetical parent language of the Semitic group of languages
13 letter words starting with proto
- proto-elamite — the indigenous script of Elam, found on inscriptions and tablets from the fourth millennium b.c.
- protoactinium — protactinium.
- protochordate — any of the nonvertebrate chordates, as the tunicates, cephalochordates, and hemichordates.
- protolanguage — the reconstructed or postulated parent form of a language or a group of related languages.
- protonotariat — the prelates of the Roman Curia
14 letter words starting with proto
- proto-germanic — the unattested prehistoric parent language of the Germanic languages; Germanic.
- proto-oncogene — a normally present gene that appears to have a role in the regulation of normal cell growth, but that is converted to an oncogene by mutation.
- protocontinent — an actual or hypothetical landmass that might later be enlarged into a major continent or broken up into smaller ones.
- protogeometric — pertaining to or designating a style of vase painting developed in Greece chiefly during the 10th century b.c. and characterized by use of abstract geometrical motifs.
- protohistorian — a student of or expert in protohistory
15 letter words starting with proto
- protonephridium — a tubular, excretory structure in certain invertebrates, as flatworms, rotifers, and some larvae, usually ending internally in flame cells and having an external pore
- protospatharius — (of the Byzantine empire) a high-ranking official in the imperial guard
16 letter words starting with proto
- proto-algonquian — the unattested parent language from which the Algonquian languages are descended.
19 letter words starting with proto
- proto-indo-european — the unattested prehistoric parent language of the Indo-European languages; Indo-European.
On this page, we collect all words starting with PROTO. To make easier to find the right word we have divided all 105 words to groups according to their length. So you should go to appropriate page if can’t find the word that beginning with PROTO. that you are searching. Also you can use this page in Scrabble.