Etymology
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vivisection (n.)
"dissection of a living animal," 1690s, from Latin vivus "alive" (from PIE root *gwei- "to live") + ending from dissection. Related: Vivisectionist.
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biogeography (n.)
also bio-geography, "science of the distribution of living things in different regions," 1892, from bio- + geography. Related: Biogeographical.
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lapidocolous (adj.)
of beetles, "living under stones," 1888, from Latin lapis "a stone" (see lapideous) + colus "inhabiting," from colere "to inhabit" (see colony).
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biotaxy (n.)
"classification and arrangement of living organisms according to their characteristics," 1853, from bio- "life" + -taxy, from Greek taxis "arrangement" (see tactics).
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biodiversity (n.)
also bio-diversity, "the range of variety in the living organisms of a given area," by 1988, from bio- + diversity.
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biomorph (n.)

"a decorative form representing a living object," 1895 (A.C. Haddon), from bio- "life" + -morph "form," a word of uncertain etymology. Related: Biomorphic.

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bioclimatology (n.)
also bio-climatology, "study of climate in relation to living organisms," 1911; see bio- + climatology.
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POSSLQ 
1979, acronym from person of opposite sex sharing living quarters; it never was an official category.
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*gwei- 
also *gweie-, Proto-Indo-European root meaning "to live."

It forms all or part of: abiogenesis; aerobic; amphibian; anaerobic; azo-; azoic; azotemia; bio-; biography; biology; biome; bionics; biopsy; biota; biotic; cenobite; Cenozoic; convivial; couch-grass; epizoic; epizoon; epizootic; macrobiotic; Mesozoic; microbe; Protozoa; protozoic; quick; quicken; quicksand; quicksilver; quiver (v.) "to tremble;" revive; survive; symbiosis; viable; viand; viper; vita; vital; vitamin; victuals; viva; vivace; vivacious; vivarium; vivid; vivify; viviparous; vivisection; whiskey; wyvern; zodiac; Zoe; zoetrope; zoic; zoo-; zoolatry; zoology; zoon; zoophilia; zoophobia; zooplankton.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit jivah "alive, living;" Old Persian *jivaka- "alive," Middle Persian zhiwak "alive;" Greek bios "one's life, course or way of living, lifetime," zoe "animal life, organic life;" Old English cwic, cwicu "living, alive;" Latin vivus "living, alive," vita "life;" Old Church Slavonic zivo "to live;" Lithuanian gyvas "living, alive," gyvata "(eternal) life;" Old Irish bethu "life," bith "age;" Welsh byd "world."
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hypogean (adj.)

"living below the ground," 1803, from Greek hypogeios "underground," from hypo "under" (see hypo-) + "earth" (see Gaia). Opposed to epigean.

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