English dictionary: words starting with prota

adjective

Placed before, in front of, or at the beginning of something.

noun

The chemical element of atomic number 91, a radioactive metal of the actinide series, occurring in small amounts as a product of the natural decay of uranium.

Usage examples:

Along the way, these disintegration series produce radioactive isotopes of protactinium, thorium, a…

noun

A fatty substance, occurring chiefly in the white matter of the brain, consisting of a mixture of cerebrosides and sphingomyelin (originally thought to be a single substance).

noun

The advocacy or championing of a particular cause or idea.

noun

The leading character or one of the major characters in a play, film, novel, etc.

Usage examples:

The novel's main protagonist is an american intelligence officer

noun

The leading character or one of the major characters in a play, film, novel, etc.

Usage examples:

The novel's main protagonist is an american intelligence officer

adjective

Of or relating to protagoras or his philosophy; (of a philosophy, system of thought, etc.) specifically characterized by relativism, agnosticism, or scepticism toward ideas of objectivity and external reality.

noun

An adherent or student of the philosophy of protagoras.

noun

The protagorean philosophy; any system of thought or belief characterized as protagorean.

noun

Any of a group of simple proteins found combined with nucleic acids, especially in fish sperm.

Usage examples:

Sperm chromatin contains protamines that must be replaced by histones before undergoing condensation.

adjective

Protandrous.

noun

Protandry.

adjective

(of a hermaphrodite flower or animal) having the male reproductive organs come to maturity before the female.

Usage examples:

It is a wind-pollinated species, with hermaphroditic protandrous flowers (the first two days as mal…

noun

A person affected by protanomaly.

adjective

Affected by protanomaly; of, relating to, or of the nature of protanomaly. also as noun (with the): people with protanomaly collectively (rare).

noun

A form of defective colour vision in which perception of light at the red end of the spectrum is reduced, resulting in a form of anomalous trichromatism that requires an excess of red in colour matching; partial protanopia.

noun

A person suffering from protanopia.

noun

Colour blindness resulting from insensitivity to red light, causing confusion of greens, reds, and yellows. it is hereditary, and is the commonest form of colour blindness.

Usage examples:

Someone pointed out to us yesterday that the current things colour scheme is far from ideal if you …

adjective

Affected by protanopia; of or relating to protanopia.

noun

A colloidal combination of protein and silver salts, used originally as an antiseptic and later chiefly as a stain for light and electron microscopy.

adjective

Of or relating to the protarsus of an insect.

noun

The tarsus of the foreleg of an insect.

noun

The clause expressing the condition in a conditional sentence (e.g. if you asked me in if you asked me i would agree ).

noun

The clause expressing the condition in a conditional sentence (e.g. if you asked me in if you asked me i would agree ).

adjective

Of an actor, or a character in a drama, poem, novel, etc.: appearing only in the protasis.

noun

An original or principal axis in a system of folding; a mountain chain corresponding to this.