12-Letter Words Starting with P

""A degenerative nervous disorder occurring mostly in persons older than 60 years, characterized in advanced stages by rhythmic muscular tremors, especially in the hands, and by rigidity of movement, a drooping posture, slow speech, and a masklike facial expression; the term designates a set of symptoms, and the underlying disease causing these symptoms is most commonly Parkinson's disease. Parkinsonism results from a deficiency in the neurotransmitter dopamine caused by degeneration of the cells producing that agent. It can be mitigated by chemotherapy with agents such as levodopa (3-hydroxy-L-tyrosine).Parkinson's disease. Parkinsonism results from a deficiency in the neurotransmitter dopamine caused by degeneration of the cells producing that agent. It can be mitigated by chemotherapy with agents such as levodopa (3-hydroxy-L-tyrosine).""

Small-mindedness

Lamia's Orphic new version betrays narrow outlook

Pl. perionychia (- - ) The border of epidermal tissue surrounding a fingernail or toenail.

The tendency of growing plant organs to move or curve under the influence of light. In ordinary use the term is practically synonymous with heliotropism.heliotropism.

""PICTORIAL Of or pertaining to pictures; illustrated by pictures; forming pictures; representing with the clearness of a picture; as, a pictorial dictionary; a pictorial imagination. as, a pictorial dictionary; a pictorial imagination.""

""The property of crystallizing under two or more distinct fundamental forms, including dimorphism and trimorphism. dimorphism and trimorphism.""

""An organism, such as a fish or reptile, having a body temperature that varies with the temperature of its surroundings; an ectotherm.""

CENTRISM a moderate political philosophy

Same as Pleomorphism. Pleomorphism.

PRAGMATIC One skilled in affairs.

""An elementary substance, one of the constituents of didymium; so called from the green color of its salts. Symbol Ps. Atomic weight 143.6.""

""Symbol Pa A rare, extremely toxic, radioactive element chemically similar to uranium, having 13 known isotopes, the most common of which is protactinium 231 with a half-life of 32,480 years. Atomic number 91; melting point 1,230°C; specific gravity 15.37; valence 4, 5. See Table at element .""

A song in celebration of a marriage.

""Of, relating to, or being random numbers generated by a definite, nonrandom computational process.""

(Life Sciences & Allied Applications / Plants) (Earth Sciences / Palaeontology) any extinct seed-producing fernlike plant of the group Pteridospermae Also called seed fern [from Greek pteris a fern + -sperm ]