h

h

h¹ or H [āch]

n.

pl. h's, H's

1. the eighth letter of the English alphabet: from the Greek eta, a borrowing from the Phoenician

2. any of the speech sounds that this letter represents, as, in English, the (h) of hat

3. a type or impression for h or H

4. the eighth in a sequence or group

5. an object shaped like H

adj.

1. of h or H

2. eighth in a sequence or group

3. shaped like H

h²

abbrev.

hecto-

h³

Chem.

symbol

Planck's constant