White, whitish, or greyish-white. / White or grey with age. / (zoology) Of a pale silvery grey. / (botany) Covered with short, dense, greyish white hairs. / (figuratively) Old or old-fashioned; trite.

The characteristic of being hoary.

plural of hoariness

A small rodent of the species Marmota caligata.

plural of hoary marmot

plural of hoary bat

Lasiurus cinereus, a vespertilionid bat that occurs throughout most of North America and much of South America, with disjunct populations in the Galápagos Islands and Hawaii.

Racomitrium canescens, a moss in the family Grimmiaceae.