testa


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tes·ta

(tes'tă),
1. In protozoology, usually termed test; an envelope of certain forms of ameboid protozoa, consisting of various earthy materials cemented to a chitinous base (as in the testate rhizopods of the subclass Testacealobosia) or the calcareous, siliceous, organic, or strontium sulfate skeletons in the rhizopod subclass Foraminifera.
2. In botany, the outer, sometimes the only, coat of a seed.
[L. shell]

tes·ta

(tes'tă)
1. In protozoology, usually termed test; an envelope of certain forms of ameboid protozoa, consisting of various early materials cemented to a chitinous base (as in the testate rhizopods of the subclass Testacealobosia) or the calcareous, siliceous, organic, or strontium sulfate skeletons in the rhizopod subsclass Foraminifera.
Synonym(s): test (6).
2. In botany, the outer, sometimes the only, coat of a seed.
[L. shell]

testa

a protective coat around the seed, formed from the INTEGUMENTS of the OVULE. At one area on the testa is the hilum, at one end of which is often found the MICROPYLE. Sometimes the testa is responsible for seed dormancy, a state which is broken when the coat ruptures (see GERMINATION).
References in periodicals archive ?
In this study seed morphology and testa properties of 18 taxa belonging to 9 sections are analyzed (Table I).
In chapter 5, "Socialista Privatized: Just Fill Up the Cart (1982-89)," Testa identifies this decade with the socialist Bettino Craxi and the rule of the pentapartito as the two largest political parties (DC and PCI) begin to disintegrate by the late 1980s.
Tirti buvo naudojamos sios priemones: kompasas, matuokle (metras), vokeliai kerpiu pavyzdziams sudeti, 100 cm dydzio remelis kerpiu dangai nustatyti (Kerpiu (Lichenes) testas ...
Las semillas fragmentadas (35 %) aumentaron en relacion a la harina no refinada, mientras que disminuyeron las semillas con testa fisurada (6 %).
Testa sculpts her pieces using hand-building techniques, and has recently worked to develop new techniques like dremmel carving.
As noted above, Testa promises and delivers a book about a man who happened to play baseball.
But Testa said Malaysian sukuk deals were largely denominated in Malaysian ringgit and the global credit crisis, resulting in a weak dollar, had dented demand for hard currency sukuk deals.
The incident occurred when enraged driver Michael Testa deliberately struck his girlfriend's truck, causing her to collide with Adams' vehicle.
Several times since San Francisco artist Luigi Testa's gift of abstract art arrived in Springfield in early 2003, city officials have met to discuss finding an appropriate place to display the 24 donated sculptures.
"We had the chance to redo everything with the new terminal building, and that's what we did," said Alfred Testa Jr., director of aviation at Harrisburg International Airport.
One village elder told photographer Andrew Testa that no fewer than 10 Moken, out of a population of 200, have come down with AIDS after trips to the mainland, and that his own son died of the disease.