| pyla | Origin: NL, fr. Gr. An entrance. <anatomy> The passage between the iter and optocoele in the brain. Source: Websters Dictionary (01 Mar 1998) |
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| pylangium | Origin: NL, from Gr. An entrance + a vessel. <anatomy> The first and undivided part of the aortic trunk in the amphibian heart. Pylan"gial. Source: Websters Dictionary (01 Mar 1998) |
| pylar | Relating to the pyla. (05 Mar 2000) |