A person who is not one's biological sibling but was nursed by the same woman as oneself.

(astronomy) One day of sidereal time; the time in which Earth rotates once around its axis, relative to the point of the vernal equinox (about 23 hours, 56 minutes, 4 seconds).

An acute illness, with vomiting and dehydration, caused by the toxin hypoglycin A, found in unripe ackee fruit.

(astrology) A form of astrology that measures the position of the sun relative to the stars. This compensates for the precession of Earth's axis, which causes the zodiac signs to move around the sky relative to the vernal equinox.

A condition, with trembling and vomiting, caused by ingestion of milk, meat, etc. from a cow that has fed on white snakeroot, which contains the poison tremetol.

Alternative form of three-day sickness.

(astronomy) The sidereal day of a planet. (I.e., in the definition for "sidereal day", replace "Earth" by the given planet.)

(astronomy) The sidereal year of a planet. (I.e., in the definition for "sidereal year", replace "Earth" by the given planet.)

(astronomy) sidereal orbital period / (astronomy) sidereal rotation period

plural of sidewalk superintendent