perturb
To cause (something) to be physically disordered or disturbed; to cause confusion.
To disturb (someone, their mind, etc.) mentally; to bother, trouble, upset.
Of a celestial body: to modify the motion or orbit of (another celestial body) by exerting a gravitational force; hence (physics), to slightly modify (the motion of an object).
To slightly modify (a set of equations or their solutions), producing deviations from a simple, easily solvable problem, in order to find an approximate solution to a problem that is more difficult to solve or otherwise unsolvable.
To influence (a process or system) so that it deviates from its normal state.
To bother, to disturb, to trouble.

perturbate
To perturb.

perturbates
third-person singular simple present indicative of perturbate

perturbest
second-person singular simple present indicative of perturb.

perturbeth
third-person singular simple present indicative of perturb.

perturbs
third-person singular simple present indicative of perturb

pervaporate
To evaporate through a semipermeable membrane, as a method of separating liquids.

pervaporated
simple past and past participle of pervaporate

pervaporates
third-person singular simple present indicative of pervaporate

perverses
third-person singular simple present indicative of perverse

pervertest
second-person singular simple present indicative of pervert

perverteth
third-person singular simple present indicative of pervert

perves
plural of perve

pervestigate
To investigate thoroughly.

pervestigated
simple past and past participle of pervestigate

pervestigates
third-person singular simple present indicative of pervestigate

pervulgate
To publish.

pervulgated
simple past and past participle of pervulgate

pervulgates
third-person singular simple present indicative of pervulgate

pessimised
simple past and past participle of pessimise

pessimises
third-person singular simple present indicative of pessimise

pester
To bother, harass, or annoy persistently.
To crowd together thickly.

pestered
simple past and past participle of pester

pesterest
second-person singular simple present indicative of pester

pestereth
third-person singular simple present indicative of pester

pesters
third-person singular simple present indicative of pester

pestis
Plague.

pestproofed
simple past and past participle of pestproof

pestproofs
third-person singular simple present indicative of pestproof

pestre
Obsolete form of pester.

pestred
simple past and past participle of pestre

pestres
third-person singular simple present indicative of pestre

petal
One of the component parts of the corolla of a flower. It applies particularly, but not necessarily only, when the corolla consists of separate parts, that is when the petals are not connately fused. Petals are often brightly colored.
The labia (majora).
Term of endearment.
A lobe of a rose (geometric shape).

petala
plural of petalum

petals
plural of petal

petalum
A petal.

petition
A formal written request made by an individual or a group of people to a sovereign or political authority, often containing many signatures, soliciting some grace, right, mercy, or the redress of some wrong or grievance.
A formal written application made to a magistrate or court for an order or a suit for divorce.
A prayer or supplication, especially of which is formal or humble and made to a deity, a sovereign, or an authority.

petitioned
simple past and past participle of petition

petitioneth
third-person singular simple present indicative of petition

petitions
plural of petition

petnap
To steal or abduct a pet

petroled
simple past and past participle of petrol

petrolled
simple past and past participle of petrol

petropolitics
The politics associated with the export of oil.

petrorevenue
Revenue from the export of oil.

petrosphere
Any roughly spherical artefact made of stone.

petrospheres
plural of petrosphere

pettifogulize
To act as a pettifogger; to use contemptible tricks.

pettifogulized
simple past and past participle of pettifogulize

pettifogulizes
third-person singular simple present indicative of pettifogulize

pettle
To fondle or pet; to pamper.

pettled
simple past and past participle of pettle

pettles
third-person singular simple present indicative of pettle

pettyfog
Alternative form of pettifog.

pettyfogged
simple past and past participle of pettyfog

pettyfogs
third-person singular simple present indicative of pettyfog

pewed
simple past and past participle of pew

pews
plural of pew

pewtered
simple past and past participle of pewter

pewters
plural of pewter

pfaff
Alternative spelling of faff.

pfaffed
simple past and past participle of pfaff

pfaffs
third-person singular simple present indicative of pfaff

pfb
To purl into front and back of same stitch.

phagget
Faggot.

phaggets
plural of phagget

phaggot
Alternative spelling of faggot (“homosexual man”).
Filter-avoidance spelling of faggot (“homosexual man”).

phaggots
plural of phaggot

phagocyte
A cell of the immune system, such as a neutrophil, macrophage or dendritic cell, that engulfs and destroys viruses, bacteria and waste materials, or in the case of mature dendritic cells; displays antigens from invading pathogens to cells of the lymphoid lineage.

phagocyted
simple past and past participle of phagocyte

phagocytes
plural of phagocyte

phagocytozing
Misspelling of phagocytosing.

phallicize
To make phallic.

phallicized
simple past and past participle of phallicize

phallicizes
third-person singular simple present indicative of phallicize

phancied
simple past and past participle of phancy

phancies
plural of phancy
plural of phancie

phantasie
Obsolete spelling of fantasy.

phantasies
plural of phantasy

phantasise
Dated form of fantasize.

phantasises
third-person singular simple present indicative of phantasise

phantasize
Dated form of fantasize.

phantasized
simple past and past participle of phantasize

phantasizes
third-person singular simple present indicative of phantasize

phantasy
Archaic spelling of fantasy.
The innate, mental image of an object; the link between instinct and reality.

pharmacogenotype
A genotype that has an influence on the response to a drug

pharmacogenotyped
simple past and past participle of pharmacogenotype

pharmacogenotypes
plural of pharmacogenotype

pharmacophenotype
A pharmacological phenotype

pharmacophenotypes
plural of pharmacophenotype

pharmed
simple past and past participle of pharm

pharms
plural of pharm

pharyngospasm
pharyngismus

phasered
simple past and past participle of phaser

phaze
Obsolete form of faze.

pheesed
simple past and past participle of pheese

pheeses
plural of pheese

pheezed
simple past and past participle of pheeze

pheezes
plural of pheeze

phenagled
simple past and past participle of phenagle

phenagles
third-person singular simple present indicative of phenagle

pheneotype
Misspelling of phenotype.

phenoconvert
Synonym of phenocopy.

phenocopied
simple past and past participle of phenocopy

phenocopies
plural of phenocopy

phenocopy
A phenotypic variation (in an organism) that resembles a phenotype from a genetic cause but has an environmental rather than genetic cause (and thus is not inherited).

phenodominate
To act in a phenodominant manner

phenodominated
simple past and past participle of phenodominate

phenodominates
third-person singular simple present indicative of phenodominate

phenogenotype
A phenotype that is also a genotype

phenogenotypes
plural of phenogenotype

phenolate
phenoxide

phenolates
plural of phenolate

phenomenalise
Alternative form of phenomenalize.

phenomenalised
simple past and past participle of phenomenalise

phenomenalises
third-person singular simple present indicative of phenomenalise

phenomenalize
To represent as a phenomenon.

phenomenalized
simple past and past participle of phenomenalize

phenomenalizes
third-person singular simple present indicative of phenomenalize

phenomenise
Alternative form of phenomenize.