dipneumona
Dip*neu"mo*na, n. pl. Etym: [NL., fr. Gr. (Zoöl.) Defn: A group of spiders having only two lunglike organs. [Written also Dipneumones.]
Dip*neu"mo*na, n. pl. Etym: [NL., fr. Gr. (Zoöl.) Defn: A group of spiders having only two lunglike organs. [Written also Dipneumones.]