perigealadj.

Brit.

/ˌpɛrᵻˈdʒiːəl/, U.S.

/ˌpɛrəˈdʒiəl/

Origin: Formed within English, by derivation. Etymons: perigeum n., perigee n., -al suffix¹.

Etymology: < either perigeum n. or perigee n. + -al suffix¹.

Chiefly Astronomy. Now rare.

= perigean adj.

ΘΚΠ

the world > the universe > sun > position > [adjective]

perigeal1754

vertic1762

1754 Philos. Trans. 1753 (Royal Soc.) 48 166 A new method for measuring the difference between the apogeal and perigeal diameters of the sun.

1853 Philos. Trans. (Royal Soc.) 143 184 A change of 1″ in the coefficient for mean longitude..produces, in the moon's place for a perigeal eclipse.., an effect of about 10″.

1968 Isis 59 7 The apogeal diameter is found to be about 30′, and the perigeal diameter about 31′.

1980 Christian Sci. Monitor (Boston, Mass.) (Nexis) 4 Aug. 20 In one of the local coves lies a broken hull, cast up by perigeal tide into the salt hay.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	perigeal
释义	perigealadj. Brit. /ˌpɛrᵻˈdʒiːəl/, U.S. /ˌpɛrəˈdʒiəl/ Origin: Formed within English, by derivation. Etymons: perigeum n., perigee n., -al suffix¹. Etymology: < either perigeum n. or perigee n. + -al suffix¹. Chiefly Astronomy. Now rare. = perigean adj. ΘΚΠ the world > the universe > sun > position > [adjective] perigeal1754 vertic1762 1754 Philos. Trans. 1753 (Royal Soc.) 48 166 A new method for measuring the difference between the apogeal and perigeal diameters of the sun. 1853 Philos. Trans. (Royal Soc.) 143 184 A change of 1″ in the coefficient for mean longitude..produces, in the moon's place for a perigeal eclipse.., an effect of about 10″. 1968 Isis 59 7 The apogeal diameter is found to be about 30′, and the perigeal diameter about 31′. 1980 Christian Sci. Monitor (Boston, Mass.) (Nexis) 4 Aug. 20 In one of the local coves lies a broken hull, cast up by perigeal tide into the salt hay. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < adj.1754
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