different between univalve vs gyration

English

Etymology

Originated 1655–65 from uni- (“one”) +? valve.

Adjective

univalve (not comparable)

1. having one valve; typically used to refer to mollusks, notably slugs and snails.
2. consisting of a single valve or piece, used to refer to a shell.

Translations

Noun

univalve (plural univalves)

1. A univalve mollusk or its shell.

Usage notes

The term univalve is now considered outdated in scientific classification, and the term gastropod is preferred.

Synonyms

• gastropod

Coordinate terms

• bivalve

Related terms

• bivalve

Translations

References

• “univalve”, in The American Heritage Dictionary of the English Language, 4th edition, Boston, Mass.: Houghton Mifflin, 2000, ?ISBN
• “univalve” in Dictionary.com Unabridged, Dictionary.com, LLC, 1995–present.
• "univalve" in WordNet 2.0, Princeton University, 2003.

English

Etymology

gyrate +? -ion

Pronunciation

• IPA^(key): /d?a???e???n/

• Rhymes: -e???n

Noun

gyration (plural gyrations)

1. The act of turning or whirling, as around a fixed center; a circular or spiral motion; motion about an axis; rotation; revolution.
   • 1881, Symon's monthly meteorological magazine (page 59)

     If you question a seaman on the subject, whether mere coaster or circumnavigator, he will tell you that in a snow-storm, because of its constant eddyings and gyrations, frequent trimming of sails is more necessary than in any other gale […]

2. One of the whorls of a spiral univalve shell.
3. Appropriate arrangement of convolutions of gyri in the cerebral cortex.

See also

• gyrification

Anagrams

• organity