adrenocortical
- a of or derived from the cortex of the adrenal glands
ad-lib
- n remark made spontaneously without prior preparation
his ad-libs got him in trouble with the politicians - v perform without preparation
- s with little or no preparation or forethought
his ad-lib comments showed poor judgment - s said or done without having been planned or written in advance
he made a few ad-lib remarks
ad hoc
- s often improvised or impromptu
- s for or concerned with one specific purpose
- r for one specific case
actinoid
- n any of a series of radioactive elements with atomic numbers 89 through 103
- s having a radial form
starfish are actinoid--that is, they are radially symmetrical
actinomorphic
- a capable of division into symmetrical halves by any longitudinal plane passing through the axis
actinomorphous
- a capable of division into symmetrical halves by any longitudinal plane passing through the axis
actionable
- s affording grounds for legal action
slander is an actionable offense
activated
- v put in motion or move to act
- v make active or more active
- v make more adsorptive
- v aerate (sewage) so as to favor the growth of organisms that decompose organic matter
- v make (substances) radioactive
- s (of sewage) treated with aeration and bacteria to aid decomposition
- s (of e.g. a molecule) made reactive or more reactive
- s rendered active; e.g. rendered radioactive or luminescent or photosensitive or conductive
- s (military) set up and placed on active assignment
a newly activated unit
activating
- n the activity of causing to have energy and be active
- v put in motion or move to act
- v make active or more active
- v make more adsorptive
- v aerate (sewage) so as to favor the growth of organisms that decompose organic matter
- v make (substances) radioactive
- s causing motion or action or change
ad hominem
- s appealing to personal considerations (rather than to fact or reason)