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tetrapneumonian
tetrapneumonian adj. and n. 
/ˌtɛtrə(p)njᵿˈməʊnɪən/, /ˌtɛtrə(p)n(j)uˈmoʊnjən/ Zoology (a) adj. of or pertaining to the Tetrapneumones, a division of spiders with two pairs of lung-sacs ( Cent. Dict. 1891); (b) n. a spider of this division. [After scientific Latin Tetrapneumones (1825 or earlier); compare French tétrapneumones (1825 or earlier).]
Brit. /ˌtɛtrə(p)njuːˈməʊnɪən/
, /ˌtɛtrə(p)njuːˈməʊnɪən//ˌtɛtrə(p)njᵿˈməʊnɪən/U.S. /ˌtɛtrə(p)nəˈmoʊnjən/
, /ˌtɛtrə(p)nəˈmoʊnjən//ˌtɛtrə(p)n(j)uˈmoʊnjən/ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [adjective] > of or belonging to Araneida > of or relating to Tetrapneumones
tetrapneumonian1842
the world > animals > invertebrates > phylum Arthropoda > class Arachnida > [noun] > order Aranea > division Tetrapneumones > member of
tetrapneumonian1842
1842 W. T. Brande Dict. Sci., Lit. & Art 1226/1 Tetrapneumonians, Tetrapneumones,..a section of spiders..comprehending those which have four pulmonary sacs.
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