perianth
معنی فارسی
پوشش گل
معنی کامل و مثالها
/per´ē anth´/n.
● (گیاه شناسی) گلپوش (floral envelope هم میگویند)
ریشه و کاربرد
ریشه
Derived from the Greek words 'peri' meaning 'near' and 'apsis' meaning 'orbit'.
مثال
- The periapsis of a satellite is the point in its orbit closest to the Earth.
- The periapsis of a comet is the point in its orbit closest to the Sun.
- The periapsis of a planet determines its closest distance to the star it orbits.
ترکیبهای رایج
Point of periapsis Orbit periapsis Celestial body periapsis Study of periapsis
تعریف انگلیسی
noun
- collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils