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tri·quet·ra 1

(trī-kwĕt′rə, -kwē′trə)
n. pl. tri·quet·rae (-trē) or tri·quet·ras
A figure consisting of three arcs joined at the ends and interlaced, used in various traditions as a religious or heraldic symbol.

[Latin, feminine of triquetrus, three-cornered; see triquetrous.]

tri·quet·ra 2

(trī-kwĕt′rə, -kwē′trə)
Plural of triquetrum.


an ornament in the shape of three intersecting ellipses roughly forming a triangle
References in periodicals archive ?
He documented the occurrence of 28 species of mussels in this reach including specimens of one federally listed endangered species, Epioblasma triquetra (snuffbox), one federally listed threatened species, Quadrula cylindrica (rabbitsfoot), one Ohio endangered species, Megalonaias nervosa (washboard), one Ohio threatened species, Truncilla donaciformis (fawn foot), and seven species currently listed as species of concern in the state, Anodonta suborbiculata (round floater),
In The Health Co-Op's case, their interlocking rings on the logo also symbolize the triquetra, or another version of the Holy Trinity symbol.
Gonyaulax birostris Gonyaulax pacifica Gonyaulax polygramma Gonyaulax spinifera Gymnodinium sp Gymnodinium fusus/ Gyrodinium falcatum Gyroninium spirale Heterocapsa triquetra Histioneis crateriformis Histoneis c/eaveri Histoneis joergensenii Karenia cf.
The phylogeographical and management implications of genetic population structure in the imperiled snuffbox mussel, Epioblasma triquetra (Bivalvia: Unionidae).
Through research I realised Knox used a lot of celtic knot work in his designs and one symbol which kept popping up was the triquetra, three interlinking arms which can either mean father, son and holy ghost or past, present and future.
torulosa -- -- X -- (Rafinesque, 1820) Epioblasma triquetra X -- X -- (Rafinesque, 1820) Fusconaia flava X X X X Glebula rotundata (Lamarck, -- -- X -- 1819) Lampsilis cardium X -- X -- Lampsilis fasciola Rafinesque, X -- X -- 1820 Lampsilis higginsii (Lea, 1857) -- -- X -- Lampsilis ovata (Say, 1817) X X -- -- Lampsilis siliquoidea X -- X -- Lampsilis teres X X X -- Lasmigona c.
90-98) is a simple triquetra, a motif found on some Assyrian royal seals perhaps associated with the queen.
1994; 1997a, b) did not confirm the presence of cavities in all individuals of the tribe, restricting its occurrence to the genus Sechium and to the species Sechiopsis triquetra (Ser.
The charophyte association, which includes oogonia attributed to Atopochara trivolvis triquetra (Grambast, 1968), dates the locality of La Cantalera as late Hauterivian-early Barremian in age (Triquetra subzone), and, by approximation, the rest of the lower part of the Blesa Formation (Soria et al, 1995; Canudo et al.
triquetra is ovate to elliptical, inflated in the locular area, but the distal part of each carpel drawn into a membranous or chartaceous wing with radiating irregular reticulate venation and a thin fimbrial vein.