hy·drom·e·ter 
(hī-drŏmĭ-tər)
(hī-drŏmĭ-tər)n.
An instrument used to determine specific gravity, especially a sealed, graduated tube, weighted at one end, that sinks in a fluid to a depth used as a measure of the fluid's specific gravity.
hy′dro·metric (hī′drə-mĕtrĭk), hy′dro·metri·cal adj.
hy′dro·metri·cal·ly adv.
hy·drome·try n.
- impersonator
- impertinence
- impertinency
- impertinent
- impertinently
- imperturbability
- imperturbable
- imperturbableness
- imperturbably
- impervious
- imperviously
- imperviousness
- impetigenous
- impetigo
- impetuosity
- impetuous
- impetuously
- impetuousness
- impetus
- impiety
- impinge
- impingement
- impingement syndrome
- impinger
- impious