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 (pŏl′ē-tĭp′ĭk) also pol·y·typ·i·cal (-ĭ-kəl)
Having several variant forms, especially subspecies or varieties.


(ˌpɒlɪˈtɪpɪk) or


1. existing in, consisting of, or incorporating several different types or forms
2. (Biology) biology (of a taxonomic group) having many subdivisions, esp (of a species) having many subspecies and geographical races


(ˌpɒl iˈtɪp ɪk)

also pol`y•typ′i•cal,

having or involving many or several types.
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References in periodicals archive ?
Whether Cannabis is polytypic (one species with many kinds) or polyspecific (more one than one species) became a polarized debate in court cases.
The south-eastern house mouse Mus musculus castaneus (Rodentia: Muridae) is a polytypic subspecies.
The hamster is a polytypic species and the range covered in our study is believed to be occupied by seven distinct subspecies (Berdyugin & Bolshakov 1998).
The barred tiger salamander [Ambystoma mavortium (Baird, 1850)] is a polytypic species with multiple distinct morphologies, making it popular for studies of phenotypic plasticity and evolution.
A new subspecies of the polytypic lizard Sceloporus undulatus (Sauria: Iguanidae) from northern Mexico.
Specific topics include the effect of wetting-drying cycles on the behavior of hydrophilic additives in mineral wool, a preliminary study of basalt fibers as a sustainable reinforcement for cement-based mortars, the ultrasonic monitoring of a bending test of glass-fiber-reinforced cement, press and injection hybrid molding of thermoplastics reinforced with glass fiber, polytypic heterjunctions for wide bandgap semiconductor materials, and the simultaneous effect of surface roughness and passivity on the corrosion resistance of metals.
B cells are often numerous (10%-60% of the infiltrate), (10,17,20-23) and intermixed plasma cells are typically polytypic.
Phacellodomus ruffrons, considered a single, polytypic species, is the most widespread species of Phacellodomus in South America, covering at least 19 ecoregions, such as La Costa xeric shrublands, Cerrado and Serra do Mar coastal rainforest.
Allendorf F W, Leary R F, 1988, "Conservation and distribution of genetic variation in a polytypic species, the cutthroat trout" Conservation Biology 2 170-184
Taxonomic re-evaluation of the Taiwanese montane earthworm Amynthas wulinensis Tsai, Shen & Tsai, 2001 (Oligochaeta: Megascolecidae): polytypic species or species complex?