physan.

Brit.

/ˈfʌɪsə/, U.S.

/ˈfaɪsə/

Inflections: Plural physæ, physas.

Origin: A borrowing from Latin. Etymon: Latin Physa.

Etymology: < scientific Latin Physa, genus name (J. P. R. Draparnaud Tableau des mollusques terrestres et fluviatiles de la France (1801) 31, 52) < ancient Greek ϕῦσα bellows, probably < the same Indo-European base as classical Latin pustula pustule n. Compare French physe (1817 in the passage translated in quot. 1834).

A small freshwater snail of the genus Physa or family Physidae, having a thin, sinistral shell; (in form Physa) the genus itself.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > order Pulmonifera > Inoperculata > family Limnaeidae or Planorbidae > member of

water snail1548

ramshorn snail1778

physa1834

mud snail1890

trumpet-snail1901

1834 H. McMurtrie tr. G. Cuvier Animal Kingdom (abridged ed.) 242 The Physæ have a shell very similar to that of a Lymnæus, but without the fold in the columella and reflected edge, and very thin.

1855 C. Lyell Elem. Geol. xx Freshwater strata..filled..with Valvata, Paludina, Planorbis, Limnæus, Physa, and Cyclas.

1902 C. J. Cornish Naturalist on Thames 16 Tiny physas and succineas, no larger than shot.

1942 Amer. Midland Naturalist 27 85 My thanks are due to Dr. William J. Clench for the identification of some of the Physae.

1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) iii. 88 The oldest known freshwater Pulmonates appear to be Physa and Planorbis of the Purbeck Beds, except for some very doubtful Palaeozoic records.

2004 Ottawa Citizen (Nexis) 24 Apr. a5 The Lake Winnipeg physa snail and the Atlantic harbour porpoise are also on the list.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	physa
释义	physan. Brit. /ˈfʌɪsə/, U.S. /ˈfaɪsə/ Inflections: Plural physæ, physas. Origin: A borrowing from Latin. Etymon: Latin Physa. Etymology: < scientific Latin Physa, genus name (J. P. R. Draparnaud Tableau des mollusques terrestres et fluviatiles de la France (1801) 31, 52) < ancient Greek ϕῦσα bellows, probably < the same Indo-European base as classical Latin pustula pustule n. Compare French physe (1817 in the passage translated in quot. 1834). A small freshwater snail of the genus Physa or family Physidae, having a thin, sinistral shell; (in form Physa) the genus itself. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Gastropoda > [noun] > order Pulmonifera > Inoperculata > family Limnaeidae or Planorbidae > member of water snail1548 ramshorn snail1778 physa1834 mud snail1890 trumpet-snail1901 1834 H. McMurtrie tr. G. Cuvier Animal Kingdom (abridged ed.) 242 The Physæ have a shell very similar to that of a Lymnæus, but without the fold in the columella and reflected edge, and very thin. 1855 C. Lyell Elem. Geol. xx Freshwater strata..filled..with Valvata, Paludina, Planorbis, Limnæus, Physa, and Cyclas. 1902 C. J. Cornish Naturalist on Thames 16 Tiny physas and succineas, no larger than shot. 1942 Amer. Midland Naturalist 27 85 My thanks are due to Dr. William J. Clench for the identification of some of the Physae. 1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) iii. 88 The oldest known freshwater Pulmonates appear to be Physa and Planorbis of the Purbeck Beds, except for some very doubtful Palaeozoic records. 2004 Ottawa Citizen (Nexis) 24 Apr. a5 The Lake Winnipeg physa snail and the Atlantic harbour porpoise are also on the list. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < n.1834
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