Tannic acid (medicine) and Enter - Horse Racing (gambling)

Tannic acid (medicine)

tannic acid
<chemical> Penta (m digalloyl) glucose or any soluble tannin, used in electron microscopy to enhance the contrast.

Addition of tannic acid to fixatives greatly improves, for example: the image obtained of tubulin sub units in the microtubule or the HMM decoration of microfilaments.

Enter - Horse Racing (gambling)

To enroll a race animal in a race.

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