Word: keymask
Part of speech: Noun
Syllables: key
mask
Definition: A bitmask specifying which keypresses were made.
Morphemes:
Affix: key
Language: en
PoS: Verb
Meaning: To depress (a telegraph key).
Affix: mask
Language: en
PoS: Noun
Meaning: A pattern of bits used in bitwise operations; bitmask.