(science fiction) An inhabitant of Sirius.

A Tupian language of eastern Bolivia.

plural of Sirian

A vining plant of Sumatra, whose leaves may be chewed with betel nuts or used medicinally to shrink the vagina after childbirth.

(zoology) Any of the family Siricidae of horntails, certain woodwasps.

plural of siricid

(medicine, obsolete) sunstroke

A unit of distance equal to one million astronomical units or 15.813 light-years.

plural of siriometer

plural of siring