subdominant adjective & noun². [sʌb'dɒmɪnǝnt] E19.
[from SUB- 5 + DOMINANT.]
A. adjective. Less than dominant, not quite dominant. Chiefly Ecology, designating a plant which is prevalent in a community without being the dominant species. E19.
b. noun. Ecology. A subdominant species. M20.

[TahlilGaran] English Dictionary ▲

subdominant noun¹. [sʌb'dɒmɪnǝnt] L18.
[from SUB- 1 + DOMINANT noun.]
Music. The note next below the dominant of a scale; the fourth note of the diatonic scale of a key.

[TahlilGaran] English Dictionary ▲