5-letter words starting with proto
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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 5-letter words starting with PROTO. It’s easy to find right word with a certain length. It is the easiest way to find 5-letter word that beginning with PROTO to use in Scrabble or Crossword puzzles.