Somewhat or moderately acute: subacute petals and sepals. (adjective)
Between acute and chronic: subacute fever symptoms; subacute endocarditis. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "subacute" in a sentence
"Retinal hemorraghages in subacute carbon monoxide poisoning."
"The article now has a reference that purports to doubt the cause-effect relationship between the drug cloquinol and the disease known as subacute myelo-optic neuropathy."
"They plan to make the formerly bankrupt facilities profitable by sending people home more quickly: short-term or "subacute" rehabilitation is where the money is."