phytophthora
— Noun
– English
～ destructive parasitic fungi causing brown rot in plants
phytoplankton
— Noun
– English
～ photosynthetic or plant constituent of plankton; mainly unicellular algae
phytotherapy
— Noun
– English
～ the use of plants or plant extracts for medicinal purposes (especially plants that are not part of the normal diet)
phytotoxin
— Noun
– English
～ any substance produced by plants that is similar in its properties to extracellular bacterial toxin
PI
— Noun
– English
～ an antiviral drug used against HIV; interrupts HIV replication by binding and blocking HIV protease; often used in combination with other drugs
pi
— Noun
– English
～ the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...
pi-meson
— Noun
– English
～ a meson involved in holding the nucleus together; produced as the result of high-energy particle collision
PI
— Noun
– English
～ the scientist in charge of an experiment or research project
pi
— Noun
– English
～ the 16th letter of the Greek alphabet
PI
— Noun
– English
～ someone who can be employed as a detective to collect information
pia
— Noun
– English
～ perennial herb of East Indies to Polynesia and Australia; cultivated for its large edible root yielding Otaheite arrowroot starch
pia mater
— Noun
– English
～ the highly vascular innermost of the 3 meninges
piaf
— Noun
– English
～ French cabaret singer (1915-1963)
piaffe
— Noun
– English
～ a cadenced trot executed by the horse in one spot
piaget
— Noun
– English
～ Swiss psychologist remembered for his studies of cognitive development in children (1896-1980)
Piagetian
— Adjective
– English
～ of or relating to or like or in the manner of Jean Piaget
pianism
— Noun
– English
～ performance by or technique of a pianist; "a program of pianism"
pianissimo
— Noun
– English
～ (music) low loudness
pianissimo
— Adjective
– English
～ (chiefly a direction or description in music) very soft
pianissimo assai
— Adjective
– English
～ (chiefly a direction or description in music) very soft