perturbation
— Noun
– English
～ activity that is a malfunction, intrusion, or interruption; "the term `distress' connotes some degree of perturbation and emotional upset"; "he looked around for the source of the disturbance"; "there was a disturbance of neural function"
perturbation
— Noun
– English
～ an unhappy and worried mental state; "there was too much anger and disturbance"; "she didn't realize the upset she caused me"
perturbation
— Noun
– English
～ a disposition that is confused or nervous and upset
perturbed
— Adjective
– English
～ thrown into a state of agitated confusion; (`rattled' is an informal term)
perturbing
— Adjective
– English
～ causing distress or worry or anxiety; "distressing (or disturbing) news"; "lived in heroic if something distressful isolation"; "a disturbing amount of crime"; "a revelation that was most perturbing"; "a new and troubling thought"; "in a particularly worrisome predicament"; "a worrying situation"; "a worrying time"
Pertusaria
— Noun
– English
～ crustose lichens that are a source of the dye archil and of litmus
Pertusariaceae
— Noun
– English
～ a fungus family of division Lichenes
pertussis
— Noun
– English
～ a disease of the respiratory mucous membrane
peru
— Noun
– English
～ a republic in western South America; achieved independence from Spain in 1821; was the heart of the Inca empire from the 12th to 16th centuries
peruke
— Noun
– English
～ a wig for men that was fashionable in the 17th and 18th centuries
peruked
— Adjective
– English
～ wearing a wig popular for men in the 17th and 18th centuries
perusal
— Noun
– English
～ reading carefully with intent to remember
peruse
— Verb
– English
～ examine or consider with attention and in detail; "Please peruse this report at your leisure"
perusing
— Noun
– English
～ reading carefully with intent to remember
Perutz
— Noun
– English
～ English biochemist (born in Austria); studied the molecular structure of blood (1914-2002)
Peruvian cotton
— Noun
– English
～ cotton with long rough hairy fibers
Peruvian current
— Noun
– English
～ a cold ocean current that flows north along the Pacific Coast of South America before turning west
peruvian
— Noun
– English
～ a native or inhabitant of Peru
Peruvian bark
— Noun
– English
～ medicinal bark of cinchona trees; source of quinine and quinidine
Peruvian lily
— Noun
– English
～ an Andean herb having umbels of showy pinkish-purple lily-like flowers