protohemin
— Navneord
– Engelsk
～ a reddish-brown chloride of heme; produced from hemoglobin in laboratory tests for the presence of blood
protohippus
— Navneord
– Engelsk
～ Pliocene horse approaching donkeys in size
protohistory
— Navneord
– Engelsk
～ the study humans prior to the invention of writing
protology
— Navneord
– Engelsk
～ the study of origins and first things; "To Christians, protology refers to God's fundamental purpose for humanity"
protomammal
— Navneord
– Engelsk
～ probably warm-blooded; considered direct ancestor of mammals
proton
— Navneord
– Engelsk
～ a stable particle with positive charge equal to the negative charge of an electron
proton accelerator
— Navneord
– Engelsk
～ a collider that collides beams of protons and antiprotons
protoplasm
— Navneord
– Engelsk
～ the substance of a living cell (including cytoplasm and nucleus)
protoplasmic astrocyte
— Navneord
– Engelsk
～ a kind of astrocyte found in the grey matter
protoplast
— Navneord
– Engelsk
～ a biological unit consisting of a nucleus and the body of cytoplasm with which it interacts
Prototheria
— Navneord
– Engelsk
～ echidnas; platypus
prototherian
— Navneord
– Engelsk
～ primitive oviparous mammals found only in Australia and Tasmania and New Guinea
prototype
— Navneord
– Engelsk
～ a standard or typical example; "he is the prototype of good breeding"; "he provided America with an image of the good father"
protozoa
— Navneord
– Engelsk
～ in some classifications considered a superphylum or a subkingdom; comprises flagellates; ciliates; sporozoans; amoebas; foraminifers
phylum Protozoa
— Navneord
– Engelsk
～ in some classifications considered a superphylum or a subkingdom; comprises flagellates; ciliates; sporozoans; amoebas; foraminifers
protozoal infection
— Navneord
– Engelsk
～ any infection caused by a protozoan
protozoan
— Navneord
– Engelsk
～ any of diverse minute acellular or unicellular organisms usually nonphotosynthetic
protozoologist
— Navneord
– Engelsk
～ a zoologist who studies protozoans
protozoology
— Navneord
– Engelsk
～ the branch of zoology that studies protozoans
protozoon
— Navneord
– Engelsk
～ any of diverse minute acellular or unicellular organisms usually nonphotosynthetic