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Penicillin
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Triazine
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Tetragonal system
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Almond
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Abaca
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Podicipediformes
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Japanese maple
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Ross, Frank
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Essential oil
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Summer comfort
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Buncefield fire
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MPEG-2
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Pulmonary disease
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Central processing unit
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Aneurysm
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Vitamin C
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Chemical oxygen demand
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PDA
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ROT-13
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Sweet Gum tree
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Petrified
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Solar system
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Enteric
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Manubrium
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Ultrafiltration
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Meridian of a celestial body
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Usenet
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Data switch
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Neovascularisation
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Mascarene petrel
Senescence
Senescence is the process of biological ageing which occurs following irreversible changes in an organism, leading to death.
It is a physiological process that begins after the maturity phase and results in inevitable progressive deterioration of vital functions: reproduction, motility, immune system, etc.
Senescence can be clearly seen in this old tree. © Matthieu Luna CC by-nc-nd 2.0
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