| gr. | grain; 1 gr. = 0.0648 gm |
|---|---|
| gr | grade; graft; grain; gram; gravity; gray; gross |
| PAF | paroxysmal atrial fibrillation; peroxisomal assembly factor; phosphodiesterase-activating factor; pl... |
| RWP | ragweed pollen; R-wave progression |
| AGD | Argyrophilic grain disease |
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| aleurone grain | <plant biology> Membrane bounded storage granule within plant cells that usually contains protein. May be an aleuroplast or just a specialised vacuole. (18 Nov 1997) |
|---|---|
| grain | <botany> A fruit characteristic of grasses (such as rice), pollen grain, a microspore of a seed plant, or the partially developed gametophyte formed from it. (09 Oct 1997) |
| grain alcohol | <chemical> An organic chemical containing one or more hydroxyl groups. Alcohols can be liquids, semisolids or solids at room temperature. Common alcohols include ethanol (the type found in alcoholic beverages) methanol (found in methylated spirit and can cause blindness and other nervous system damage if ingested) and propanol. (06 May 1997) |
| grain itch | A cutaneous eruption occasionally noted in farmers and grain handlers, caused by the action of the mite Pyemotes ventricosus. (05 Mar 2000) |
| pollen | <plant biology> The microspores of seed plants, the powdery mass of microspores shed from anthers. (09 Oct 1997) |
| pollen antigen | An extract of the antigenic protein from the pollen of plants; i.e., pollen allergen, used in the diagnosis and prevention of hay fever. (05 Mar 2000) |
| pollen extract | Liquid obtained by extracting the protein from the pollen of plants used for diagnostic testing or treatment. (05 Mar 2000) |
| pollen mother cell | <plant biology> A diploid plant cell that forms four microspores by meiosis, the microspores give rise to pollen grains in seed plants. (18 Nov 1997) |
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