English dictionary: words starting with prot - page 6

noun

Hysteron proteron.

noun

A protein, a peptide, an amino acid.

noun

A protein, a peptide, an amino acid.

noun

A single-celled organism of the kingdom protista, such as a protozoan or simple alga.

Usage examples:

Protists living in the surface layers of soil

plural noun

A kingdom or large grouping that comprises mostly single-celled organisms such as the protozoa, simple algae and fungi, slime moulds, and (formerly) the bacteria. they are now divided among up to thirty phyla, and some have both plant and animal characteristics.

Usage examples:

This kingdom does not contain the prokaryotes (kingdom monera, includes bacteria, blue-green algae)…

adjective

Of or relating to the kingdom protista; protistan.

noun

An expert in or student of protistology.

noun

A single-celled organism of the kingdom protista, such as a protozoan or simple alga.

Usage examples:

Protists living in the surface layers of soil

noun

The common, stable isotope of hydrogen, as distinct from deuterium and tritium.

Usage examples:

The three isotopes are sometimes known by the names of protium, deuterium, and tritium.

Original or primitive.

Usage examples:

Prototherian

prefix

First, especially from which other similar things develop; original

Usage examples:

Protoplasm, a prototype

noun

A member of the proamphibia; an early amphibian.

noun

A chief or principal architect (now historical).

adjective

Of, relating to, or designating those books of scripture accepted into the biblical canon at an early date with little or no debate. opposed to deuterocanonical.

adjective

"protocatechuic acid" an organic acid having a structure related to, but simpler than, that of catechuic acid (catechin).

noun

A small quadrupedal dinosaur of the late cretaceous period, having a bony frill above the neck and probably ancestral to triceratops.

Usage examples:

He braved civil war, bandit armies, wolves, and sandstorms to uncover the first fossils of the prot…

adjective

(in fishes) of, relating to, or designating a tail of a primitive (or larval) type, in which the end of the vertebral column is straight and the caudal fin is symmetrical and often continuous with the dorsal and anal fins; compare "heterocercal", "homocercal".

noun

The anterior region of the brain of an arthropod.

noun

A naturally occurring photoactive precursor of chlorophyll.

noun

Any of the small marine animals belonging to the phylum hemichordata or to either of the chordate subphyla urochordata and cephalochordata, characterized (at some point in the life cycle) by a hollow dorsal nerve cord, a notochord, and gill slits; a hemichordate, urochordate, or cephalochordate, or a hypothetical ancestral form of any of these.

adjective

Of or designating a protochordate.

noun

Any of the small marine animals belonging to the phylum hemichordata or to either of the chordate subphyla urochordata and cephalochordata, characterized (at some point in the life cycle) by a hollow dorsal nerve cord, a notochord, and gill slits; a hemichordate, urochordate, or cephalochordate, or a hypothetical ancestral form of any of these.

adjective

Of or designating a protochordate.

noun

In zoantharian coelenterates, especially sea anemones and stony corals: any of the primary mesenteries, which are usually arranged in six pairs.

adjective

Of or relating to the genus protococcus.

adjective

Having the form of or resembling an alga of the genus protococcus.

noun

A genus of the family ctenocladaceae (formerly protococcaceae) of unicellular freshwater green algae, chiefly of spherical shape; (also protococcus) an alga of this genus.

noun

The official procedure or system of rules governing affairs of state or diplomatic occasions.

Usage examples:

Protocol forbids the prince from making any public statement in his defence