I. ˈkastə(r), -ˈaa-, -ˈai-, -ˈȧ- noun
Etymology: Middle English, from Latin, from Greek kastōr, from Kastōr Castor, one of the Dioscuri (the other being Latin Pollux, Greek Polydeukēs ), twin heroes or demigods of Greek mythology
1.
a. -s : beaver 1
b. capitalized
[New Latin, from Latin]
: the type genus of Castoridae comprising the beavers
2. -s : a creamy orange-brown substance with strong penetrating odor and bitter taste that consists of the dried perineal glands of the beaver and their secretion or an extract of this and is used by perfumers as a fixative and by professional trappers to scent bait — called also castoreum
3. -s
a. : a beaver or other hat made often of fur in imitation of a beaver
b. : the skin of a beaver
c. : a glove leather with a soft finish made by grinding off or suede-finishing the grain surface of goatskins or certain sheepskins
4. -s : a brownish gray that is yellower and slightly lighter than taupe, yellower and paler than chocolate, and duller and slightly yellower than mouse gray
5. -s : made-beaver
II.
variant of caster
III.
variant of castorite
IV. noun
( -s )
Etymology: origin unknown
: chestnut 5
V. noun
( -s )
Etymology: by shortening
: castor-oil plant